You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: I am Alexander Taylor, can you help me to change my reservation to next week?

ASSISTANT: Sure, I am here to help you. Hold on for a moment. Let me check.

USER: Sure, take your time.

ASSISTANT: I found a reservation on your name. Can you please provide your new journey dates?

USER: My journey dates are 03/01 and 03/03.

ASSISTANT: Ok, may I know your airport codes please?

USER: My airport codes are SFO and MCO.

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

USER: Ok.

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

USER: Proceed with booking.

ASSISTANT: Your ticket has been booked with 1009 flight number.

USER: Thank you for your help.

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