You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I support you?

USER: I am Janet Turner. My family tour trip was postponed so I want to change my existing reservation.

ASSISTANT: Sure, I will help you with that. Please wait for a moment, while I search for the reservation.

USER: Sure.

ASSISTANT: Thanks for waiting, sorry to inform you there is no any reservation found on your name.

USER: Not an issue. Thanks for your service.

ASSISTANT: Thank you for reaching us, have a nice day ahead.