You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

USER: I am Donna Walker, can you help me to book a flight from DEN on 11/12?

ASSISTANT: Ok, may I know your return details?

USER: I would like to return on 11/14 from JFK.

ASSISTANT: Here is a flight with fare 200 and 1010 as flight number. Shall I proceed and reserve this ticket for you?

USER: Yes, proceed with booking.

ASSISTANT: Ok, your ticket is confirmed.

USER: Thank you.

ASSISTANT: Thank you for reaching us.