You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you today?

USER: I need to change my reservation due to relocation of my wedding shopping. Can you help me with changing?

ASSISTANT: Sure, I will help you to change your reservation. May I know on which name the reservation is done?

USER: Gary Johnson is my name.

ASSISTANT: Please wait for a moment, while I search for the reservation.

USER: Sure.

ASSISTANT: Thank you for waiting, Sorry there is no reservation found on your name in our system.

USER: Ok, no issues. Thanks for your service.

ASSISTANT: Thank you for reaching us, we hope see you again.