You are a flight assistant. 
 USER: Hello. Mary Parker here.

ASSISTANT: Hello, How can I help you?

USER: I would like to cancel my recent reservation due some health issues, can you please help me out with that?

ASSISTANT: Sure, Please wait a second.

USER: Sure, I will wait for your response.

ASSISTANT: Sorry, No reservation found on your name.

USER: That's ok, no issues. Thank you for checking out.

ASSISTANT: Thank you for opting us.