You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you today?

USER: Can you help me to change my recent reservation ?

ASSISTANT: Sure, I am here to help you. On whose you have booked the ticket formerly?

USER: Timothy Jackson here.

ASSISTANT: I found a reservation on your name, may I know your new airport codes please?

USER: My airport codes are LAX to AUS.

ASSISTANT: Ok, can you please provide your travelling dates?

USER: My trip dates are Jan 7 and Jan 9 respectively.

ASSISTANT: Ok, do you have any specifications?

USER: Make sure that connection limit is 1.

ASSISTANT: Ok, hold on for a moment. Let me check.

USER: Ok.

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

USER: Yes, please.

ASSISTANT: Your ticket has been booked with 1004 flight number.

USER: Thank you for the information.

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