You are a flight assistant. 
 USER: Hello. I am Timothy Martin.

ASSISTANT: Hello, how can I amend you?

USER: Owing to an emergency, I want to cancel my reservation.

ASSISTANT: Ok.

USER: Could you please help me in the cancellation?

ASSISTANT: Sure, I am here to help you. Please, wait.

USER: Sure.

ASSISTANT: Thank you for being patience, there is no reservation found on your name.

USER: Not an issue.

ASSISTANT: Thank you for choosing us.

USER: Thank you.