You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you for the day?

USER: I am Michelle Parker, I have done reservation with the wrong airport codes.So, I would like to change my reservation.Can you assist me about it?

ASSISTANT: Sure, I am hear to assist you with booking.Let me check the status of your previous booking an inform you.

USER: Ok.

ASSISTANT: Michelle Parker, I am so sorry to inform you that no reservation was found by your name.

USER: Ok, fine.Thank you for the information.

ASSISTANT: Sorry for the inconvenience, keep reaching us for your further bookings also.

USER: Sure, thank you.

ASSISTANT: Have a nice day.