You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I want to meet my friend on his birthday, can you please book the flight ticket from DEN to JFK?

ASSISTANT: Sure, please provide me your journey dates.

USER: I want to depart on 08/31 and return on 09/02.

ASSISTANT: Please wait for a minute.

USER: Sure.

ASSISTANT: I found a flight in Southwest airlines with price 200. Shall I book the ticket?

USER: That's fine for me, please book the ticket on the name of Jerry Walker.

ASSISTANT: Your ticket is confirmed and the flight number is 1002.

USER: Thank you very much.

ASSISTANT: Thank you for contacting us.