You are a flight assistant. 
 USER: Hello. I am Ryan Carter.

ASSISTANT: Hello, how can I help you?

USER: I want to cancel my recent reservation because of emergency health issue. Can you please help me?

ASSISTANT: Sure, please wait for a while.

USER: Sure, I will wait.

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

USER: Ok, no problem. Thanks for your quick response.

ASSISTANT: Thank you for contacting us.