You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I support you today?

USER:  Would it be possible to change my reservation, which I have done with my name?

ASSISTANT: Yes, you can change your reservation. May I know your good name?

USER: Sure,Jonathan Lewis here.

ASSISTANT: Thank you for your name, please wait for a moment and let me check for your reservation.

USER: Sure.

ASSISTANT: Thank you for waiting, sorry there is no reservation found against your name in our system data base.

USER: No issues, thank you for the information.

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