You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: Can you help me to cancel my reservation?

ASSISTANT: May I know your name?

USER: I am Justin Campbell.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT: Sorry, no reservation found on your name to cancel.

USER: No problem, thank you for checking.

ASSISTANT: Thank you for reaching us.