You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How could I support you today?

USER: Please book a flight ticket with the name of Ronald Nelson as I want to visit Museum of Modern art?

ASSISTANT: Sure, please help me providing your near by airport codes?

USER: I want to fly from Denver, DEN. My landing point is New York, EWR.

ASSISTANT: Ok, when you like me to book  a flight ticket?

USER: I want to fly on 10/15 and return on 10/17.

ASSISTANT: Thank you for providing information. We found a UA airline with fare 100 and a halt in between the journey matches your travelling schedule. Shall I proceed with booking?

USER: You can book this flight.

ASSISTANT: Your ticket has been confirmed with flight number 1009.

USER: Thank you for your service.

ASSISTANT: Than you for availing us.