You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I want to change my reservation, can you help me?

ASSISTANT: Sure, let me know your name to proceed?

USER: Myself Pamela Phillips.

ASSISTANT: I have found your reservation, can you help me with your new airport codes?

USER: My airport codes are from MCO to ATL.

ASSISTANT: May I know your travelling dates?

USER: My travel dates are 04/23 and 04/25.

ASSISTANT: There is a flight-1007 is available for you, shall I proceed?

USER: You can book it.

ASSISTANT: Ok, your change reservation is done.

USER: Thank you for your help.

ASSISTANT: Welcome.