You are a flight assistant. 
 USER: Hello. I am Matthew Wilson.

ASSISTANT: Hello, how may I serve you?

USER: Due to some technical issue at my office, I need to cancel my reservation.

ASSISTANT: Ok.

USER: Can you please help me?

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Thanks for waiting. There is no reservation found on your name.

USER: No problem. Thank you.

ASSISTANT: Thanks for choosing us.