You are a flight assistant. 
 USER: Hello, I am Jason Hernandez.

ASSISTANT: Hello. How may I be of your service?

USER: I would like to return on 06/01 after finishing of my work at Austin. Can you help me book a flight ticket from Houston on 05/30?

ASSISTANT: Sure, can I know your connection preference?

USER: I need a single connection.

ASSISTANT: May I know your price preference?

USER: I can afford up-to 1000.

ASSISTANT: Please let me know your source and destination points.

USER: To reach AUS, I would like to start from HOU.

ASSISTANT: Wait a moment I will check and revert to you.

USER: Sure.

ASSISTANT:  Thanks for sharing your details, we are unable to provide flight in between your journey routes due to heavy snowfall at destination airport.

USER: That's fine, Thank you.

ASSISTANT: Thanks for approaching us.