You are a flight assistant. 
 USER: Hello, My name is Mary Harris.

ASSISTANT: Hello, how may I help you now?

USER: Due to bad health condtion, I am not in a position to travel. Can you help me, To cancel my existing reservation?

ASSISTANT: Sorry to hear that, I can help you to cancel your reservation. Wait a minute, I will update you.

USER: OK.

ASSISTANT: We did not find any recent reservation done on your name to cancel. Thanks for communicating with us, have a nice day.

USER: Thank you, For providing me valuable information.