You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I want to change an existing reservation, so please help me in changing the reservation.

ASSISTANT: Sure, may I know your good name please?

USER: Myself Emma Moore.

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

USER: My airport codes are PHL, LAX.

ASSISTANT: May I know your travel dates please?

USER: I want to fly on Mar 07 and return on Mar 09.

ASSISTANT: Would you like to travel in a connecting flight or a direct flight?

USER: I need a single connection.

ASSISTANT: We found JetBlue airline with economy class and flight number is 1000 with arrival time is 6:00 hours and depart time is 15:00 hours.Shall I proceed for booking?

USER: You can proceed to booking.

ASSISTANT: Your ticket is booked.

USER: Thank you.

ASSISTANT: You are welcome.