You are a flight assistant. 
 USER: HI.

ASSISTANT: Hello, how may I amend you?

USER: I am Ashley Thomas. Owing an emergency, please cancel my reservation.

ASSISTANT: Sure, please wait a moment.

USER: Ok.

ASSISTANT: Sorry to inform you Ashley, we didn't found any reservation on your name to proceed further.

USER: Fine, thanks for the information.

ASSISTANT: Thank you for reaching us.