You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Michelle Lee.

ASSISTANT: Lee, how can I render you today?

USER: Can you please book a flight ticket from JFK to JFK? As it is a round trip.

ASSISTANT: Sure, I am here to help you. May I know your travel dates please?

USER: Sure, I need to travel on dates of 03/28 and 03/30.

ASSISTANT: Ok, hold on for a moment. Let me check the best flight for you.

USER: Sure, take your time.

ASSISTANT: I found a flight for you with UA airline and it costs you 100. Shall I proceed?

USER: That is fine, please proceed with booking.

ASSISTANT: Your ticket has been booked with 1000 flight number.

USER: Thank you for your help.

ASSISTANT: Welcome, thank you for choosing us. Have a safe flight.

USER: Most welcome.