You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Actually my sister's Tennis competition is cancelled so that I want to cancel my recent reservation, can you help me?

ASSISTANT: Sure, may I know your name?

USER: Sure, I am Ryan Miller.

ASSISTANT: There is no reservation found on your name.

USER: Ok, no problem.

ASSISTANT: Thank you for reaching us.

USER: Anyway's thank you for your help.