You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello. How may I aid you today?

USER: I am Amy Thomas, want to book a flight ticket to Los Angeles with price under 500. Can you help me with it?

ASSISTANT: Sure, please mention your travelling dates?

USER: Travelling dates are 08/17 and 08/19.

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

USER: Source code is IAH and destination code is LAX.

ASSISTANT: We found a flight 1000 in Hawaiian airlines. The price is 100 with one stop over. Shall I proceed with booking?

USER: Yes you can proceed with booking.

ASSISTANT: Your ticket has been confirmed. Thank you for opting us.

USER: Thank you.