You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I need to cancel my recent reservation, due to cancel of my brother's daughter engagement. Can you help me to cancel my reservation?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Please let me know your good name.

USER: Sure, my name is George Allen.

ASSISTANT: Ok, please standby.

USER: Sure.

ASSISTANT: Thank you for your time. We regret that we did not find any reservation on your name.

USER: Ok, no worries at all. Thanks for your response.

ASSISTANT: Thank you for contacting us.