You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: Recently I had a reservation with the name of Ryan Anderson, to attend for horse racing festival. I cannot attend there due to some health issues. Can you help me to cancel my recent reservation?

ASSISTANT: Sure, please wait a moment.

USER: Ok.

ASSISTANT: Thanks for waiting, there is no reservation on your name.

USER: Ok, not a problem. Thanks for your quick response.

ASSISTANT: Thanks for choosing us.