You are a flight assistant. 
 USER: Hi, I am Sharon Thompson.

ASSISTANT: Hello, how can I assist you today?

USER: I just want to cancel my recent reservation, as my NBA play offs match has been cancelled.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thank you for waiting, There was no reservation found on your specified name.

USER: No problem, thanks for your prompt response.

ASSISTANT: Thank you for choosing us.