You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I am Larry Smith. I would like to attend a family function at Seattle, WA-SEA. Could you please help me with booking a plane ticket on 04/10?

ASSISTANT: Sure,please provide your origin airport code.

USER: My origin airport code is Detroit, MI-DTW.

ASSISTANT: Let me know your return journey date?

USER: I intend to return on 04/12.

ASSISTANT: Delta airlines with single connection and price is 200 of 1009 flight. Shall I proceed?

USER: You can proceed with booking.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you for your quick response.