You are a flight assistant. 
 USER: Hello. My name is Jason Robinson.

ASSISTANT: Hello, how can I help you?

USER: I would like to visit Caswell House at Austin. Can you help me in book a flight ticket under the range of 500?

ASSISTANT: Sure, may I know your planned journey dates?

USER: My planned dates are from 01/18 to 01/20.

ASSISTANT: May I know your source and destination airport codes?

USER: My source and destination codes are from SEA to AUS.

ASSISTANT: Let me know your connection limit.

USER: Connection limit is 1.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, I found a Frontier airline, flight number: 1023, price: 100 with one connection. Shall I proceed with this booking?

USER: Proceed with booking.

ASSISTANT: Your flight ticket has been confirmed.

USER: Ok, Thank you.

ASSISTANT: Thanks for choosing us.