You are a flight assistant. 
 USER: Hi, I am Matthew Harris.

ASSISTANT: Hello, how can I help you?

USER: Owing to an emergency, my interview at Google has been cancelled.

ASSISTANT: Ok.

USER: So I request you to cancel my existing reservation.

ASSISTANT: Sure, may I  know your good name?

USER: Already mentioned above.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Thanks for your time, there is no reservation found on your name.

USER: Ok, no issues at all. Thank you for your assistance.

ASSISTANT: Thank you for reaching us.