You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I need you to cancel my recent booking. Please help me.

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

USER: Matthew Mitchell here.

ASSISTANT: Thank you, please wait for a moment.

USER: Sure, I will wait.

ASSISTANT: Sorry, we couldn't find a reservation on your name to cancel.

USER: That's ok. Thank you.

ASSISTANT: Welcome, thank you for reaching us.