You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Is this Legacy agency?

ASSISTANT: How may I help you today? Yes, may I know your name please?

USER: Myself Ryan Scott. Can you help me in booking a flight from SEA on 04/17?

ASSISTANT: Can I know your destination details?

USER: My destination airport code is DFW on 04/19.

ASSISTANT: Flight number 1004 of Delta airlines is matching with your requirement.

USER: You can book it.

ASSISTANT: Can I proceed with that? Your ticket is confirmed.

USER: Thank you.

ASSISTANT: Most welcome.