You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: My name is Jessica Green. I would like to change my reservation, could you help me out?

ASSISTANT: Sure, please wait for a while.

USER: Sure.

ASSISTANT: I have found your reservation, can you please share your airport codes?

USER: My preferable dates are from IAH to JFK.

ASSISTANT: May I know your planned travel dates please?

USER: My preferable dates are from 05/18 to 05/20.

ASSISTANT: There is a flight available on your requested dates from Jet blue airlines with 1 connecting flight.

USER: Please proceed with the booking.

ASSISTANT: Your ticket is booked with flight 1011.

USER: Thank you.

ASSISTANT: You are most welcome.