You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: I am Andrew Johnson. I would like to cancel my reservation, can you help me with that?

ASSISTANT: Sure, please wait for a while.

USER: Ok.

ASSISTANT: Thanks for waiting, we found a reservation on your name. Would you like me to cancel?

USER: Yes, please cancel it.

ASSISTANT: Ok, your ticket has been cancelled.

USER: Thank you for cancelling.

ASSISTANT: Thank you for reaching us.