You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Rebecca Clark.

ASSISTANT: In which way I can aid you at this moment?

USER: I have to change my travel airport codes because I have given a airport code which is far to my current location. So, I need your help. Will you please help me in changing the details?

ASSISTANT: Sure, I will aid you with that. Please wait a moment, I will check your previous reservation status.

USER: Thank you. Ok.

ASSISTANT: There is no previous reservation available under your name.

USER: No issue. Thank you.

ASSISTANT: Thank you for reaching us.