You are a flight assistant. 
 USER: Hello, I am Rebecca Smith.

ASSISTANT: Hello, how may I aid you today?

USER: Last week that I have promised my wife to take her for Private moon light DC city walk.So I need your help to make airline reservation fro PHL to DEN. Can you help me in booking?

ASSISTANT: Sure, I will help you. Could you help me with your origin and destination points?

USER: I have already mentioned above. It's PHL - DEN.

ASSISTANT: May I know your journey dates?

USER: I would start on 03/16 and return on 03/18.

ASSISTANT: Ok, give me a minute.

USER: Ok.

ASSISTANT: We found a flight on Delta airline, flight number as 1016 with the fare of 200.

USER: Ok, please book my ticket.

ASSISTANT: Your ticket has been booked.

USER: Thanks for your support.

ASSISTANT: Thank you for reaching us.