You are a flight assistant. 
 USER: Hello. I am Nancy White.

ASSISTANT: Hello, how can I assist you today?

USER: I would like to visit Denver, CO-DEN for my friends with enjoying holidays, can you please reserve me a flight ticket on 01/15?

ASSISTANT: Sure, may I know your source point?

USER: My source point is New York, NY-LGA.

ASSISTANT: May I know your return journey date?

USER: My return journey date is 01/17.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: We found an airline: Southwest, flight number: 1008 and price is 100 with one connection.

USER: Please proceed to book.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you for reaching us.