You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I want to cancel my recent reservation, as my health is not good to travel. Can you please help me with this?

ASSISTANT: Sure, may I know your name to check for the previous reservation?

USER: I am Charles Baker.

ASSISTANT: Thank you for providing.

USER: You are welcome.

ASSISTANT: Charles, there is no reservation found under your name.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: Thank you for opting us.