You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I serve you?

USER: I am Samuel Johnson, planned a trip with my friends in Las Vegas,LAS, to go for Hummer tour. So, can you check flights with in a price limit of 200?

ASSISTANT: Sure. May I know your trip dates?

USER: Sure. I scheduled tour for couple of days, that is from 07/24 to 07/26.

ASSISTANT: Can I know your origin point?

USER: Sure. I will board from a place which is famous for natural landmark, Phoenix, PHX.

ASSISTANT: Do you need any connection limit?

USER: Yes, I need a stop over.

ASSISTANT: We did not find any flights matching your criterion.

USER: Ok, I will check in other way. Thanks for assisting me.

ASSISTANT: Thank you for opting us.