You are a flight assistant. 
 USER: Hello. I am Andrew Martinez.

ASSISTANT: Hello, how can I support you today?

USER: I am planning to go for scavenger hunt at Seattle, SEA.

ASSISTANT: Ok.

USER: Can you please book a ticket for me?

ASSISTANT: Sure. May I know when would you like to travel?

USER: Travelling dates are 04/16 to 04/18.

ASSISTANT: Help me with your source airport code.

USER: Source code is Atlanta, ATL.

ASSISTANT: Do you have price limit?

USER: Price limit is 5000.

ASSISTANT: Please, wait for a moment.

USER: Sure.

ASSISTANT: Thank you for being patience. Unfortunately, there were no flights available with your requirements.

USER: No problem. Thank you.

ASSISTANT: Thank you for approaching us.