You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am James Adams.

ASSISTANT: How can I help you?

USER: I am planning to book a ticket to attend a meeting at DEN. Can you please help me out to book a ticket from PHX?

ASSISTANT: James Adams, I am here to help you for this. When you are planning to travel?

USER: I would like to travel on Dec 18 and return back on Dec 20.

ASSISTANT: Do you have any airline preference? As per your data, there is a flight with American Airlines and the ticket fare is 100. Would you like me to make the booking now?

USER: No, my return time should be afternoon.

ASSISTANT: Shall I proceed for the above mention details?

USER: Please proceed the booking.

ASSISTANT: Your ticket is reserved in economy class with the flight-1001.

USER: Thank you for your service.

ASSISTANT: Thank you very much for reaching us.