You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: Would it be possible to cancel my reservation?

ASSISTANT: Sure, may I know your name please?

USER: Sure, I am Alexander Lopez.

ASSISTANT: Wait a while, kindly.

USER: Sure, take your time.

ASSISTANT:   Sorry, there is no reservation found for the user name in our back end to cancel it.

USER: It's ok, thanks for checking my reservation status.

ASSISTANT: Thank you for reaching us.