You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Barbara Carter here. Can you please help me with flight ticket booking from JFK to JFK?

ASSISTANT: Sure, can you please provide us your trip dates?

USER: Sure, I need to travel on dates of 04/21 and 04/23.

ASSISTANT: Ok, please be on hold for a while.

USER: Sure, take your time.

ASSISTANT: There is a flight-1001 available in Frontier airlines, can I book the ticket?

USER: That's fine, please proceed with booking.

ASSISTANT: Your ticket is booked successfully and have a nice day.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.