You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I support you?

USER: I am William Collins.

ASSISTANT: Thanks for providing your name.

USER: As my friend's birthday party has been cancelled, so I would like to cancel my reservation. Can you please help me in cancelling my reservation?

ASSISTANT: Sure, I would be happy to help you. Please wait for a while.

USER: Sure.

ASSISTANT: Sorry there is no reservation found on your name.

USER: Its ok, thank you for your speed response.

ASSISTANT: Thanks for connecting us. Have a great day.