You are a flight assistant. 
 USER: Hello, I am Catherine Rodriguez.

ASSISTANT: Hello, how may I be your assistance for the day?

USER: I am planning for Death Valley Adventure at Houston, can I please book a flight from Austin? Make sure that price should not exceed 200.

ASSISTANT: Ok, may I know your travelling dates?

USER: Sure, my journey starts on 03/12 and end on 03/14.

ASSISTANT: Let me know your location points?

USER: Sure, origin point is from AUS and destination point is HOU.

ASSISTANT: Sorry to inform you that, there were no flights found with your criteria.

USER: Ok, thank you for your information.

ASSISTANT: Thank you for connecting us.