You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you?

USER: Can you help me to cancel my reservation?

ASSISTANT: Sure, may I know your name for the cancellation process?

USER: I am Joshua Edwards.

ASSISTANT: Wait a while, kindly.

USER: Sure.

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

USER: No problem, thank you for checking.

ASSISTANT: Thank you for reaching us.