You are a flight assistant. 
 USER: Hello, I am Stephen King.

ASSISTANT: Hello, how can I serve you?

USER: I want to book a ticket to New York to surprise my sister on her wedding anniversary. Could you please help me too book a ticket?

ASSISTANT: Sure, on what dates you are planning to meet your sister?

USER: 12/21 to 12/13. 12/21 to 12/23.

ASSISTANT: Please provide me your airport codes?

USER: My airport codes are from IAD to JFK.

ASSISTANT: Thanks for the details, please wait for a moment.

USER: Ok.

ASSISTANT: Thanks for waiting, there is a flight of airline UA,flight number is 1008 and fare is 100 and flight connection is 1.

USER: You can proceed to booking.

ASSISTANT: Ok. Your reservation has been done on flight 1008.

USER: Thank you.

ASSISTANT: Thank you have a nice journey.