You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Can you please book a flight ticket with the name of Shirley Nelson to Denver, DEN?

ASSISTANT: Sure, may I know your journey dates?

USER: I am planning to do my birthday shopping in 16th street mall on 09/28. I intend to return on 09/30.

ASSISTANT: Please share me your source point.

USER: My boarding will be from Boston, BOS.

ASSISTANT: We are glad to say that, we found an airline: Southwest, flight number: 1018 and price is 100. Shall I proceed to booking with a single connection?

USER: You can book this flight.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.