You are a flight assistant. 
 USER: Hello. I am Donald Allen.

ASSISTANT: Hello, how may I aid you today?

USER: I want to cancel my recent reservation, can you help me?

ASSISTANT: Sure, we are happy to help you.

USER: Thank you.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: We found your reservation, Shall I proceed to cancel?

USER: Please proceed.

ASSISTANT: Ok, your reservation is cancelled.

USER: Thank you.

ASSISTANT: Thank you for reaching us.