You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: I am Paul Davis. Can you please book a ticket for me as I am planning to go for Lady bird lake bike tour at Austin, AUS?

ASSISTANT: Sure, let me know your dates of travel.

USER: I want to fly from 02/08 to 02/10.

ASSISTANT: Ok, may I know your budget?

USER: I can afford up to 200.

ASSISTANT: Ok, please mention your heading point.

USER: Source code is Seattle, SEA.

ASSISTANT: Ok, please standby.

USER: Sure.

ASSISTANT: Thanks for your time, no flight were found based on your schedule.

USER: No problem.

ASSISTANT: Thank you for choosing us.

USER: Thank you.