# DialogueStateTracker.travel\_back\_in\_time not working as expected

**URL:** <https://forum.rasa.com/t/dialoguestatetracker-travel-back-in-time-not-working-as-expected/40355>\
**Category:** Rasa Open Source\
**Created:** [February 18, 2021, 4:58pm UTC](https://forum.rasa.com/t/dialoguestatetracker-travel-back-in-time-not-working-as-expected/40355 "2021-02-18T16:58:24Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![arneverster](https://dub1.discourse-cdn.com/flex013/user_avatar/forum.rasa.com/arneverster/32/9376_2.png) [@arneverster](https://forum.rasa.com/u/arneverster)\
**Post date:** [February 18, 2021, 4:58pm UTC](https://forum.rasa.com/t/dialoguestatetracker-travel-back-in-time-not-working-as-expected/40355/1 "2021-02-18T16:58:24Z")

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Hi there!

I’m trying to reset the conversation to a previous state per timestamp. There seems to be an function that completes this but I cannot get it to work.

How can I overwrite the tracker?

Any help?

```
DST = DialogueStateTracker(tracker.events, None) # tracker.slots      
tracker = DST.travel_back_in_time(target_time=until_time)
return[tracker]

```

_until\_time_ is a slot that has been filled with a float value, like 1613665082.0.

The custom action gets called as such:

`/go_back{"until_time":1613665082.0}`

The reason I’m doing this, is because I don’t want to sequentially run the /back action. I want to jump back multiple steps to a previous point in time.

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<div class="post-metadata">

**Author:** ![fkoerner](https://dub1.discourse-cdn.com/flex013/user_avatar/forum.rasa.com/fkoerner/32/11784_2.png) [@fkoerner](https://forum.rasa.com/u/fkoerner)\
**Post date:** [February 19, 2021, 7:31am UTC](https://forum.rasa.com/t/dialoguestatetracker-travel-back-in-time-not-working-as-expected/40355/2 "2021-02-19T07:31:52Z")

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Hi! Can you explain what you mean by:

> but I cannot get it to work.

Does it crash? If so, is there an error message you can share? Or does it run and you’re seeing unexpected behaviour/results? If so, can you describe or show what you’re seeing?