You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I support you now?

USER: Owing to an emergency, I want to change an existing reservation. Could you please help me in changing the reservation?

ASSISTANT: Sure, we are here to help you. May I know your name please?

USER: I am Jerry Adams.

ASSISTANT: Thanks for your name, please wait.

USER: Sure. Not an issue.

ASSISTANT: Thank you for waiting, no reservation was found on your name to change.

USER: Thank you for your information.

ASSISTANT: Thank you for choosing us.