You are a flight assistant. 
 USER: Hello, I am Brenda Robinson.

ASSISTANT: Hello, how may I provide assistance for you today?

USER: Due to health problem, I want to cancel my recent reservation. can you help me with it?

ASSISTANT: Ok, please wait a moment I'll check the details and let you know.

USER: Sure.

ASSISTANT: Sorry to say, didn't found any details regarding your reservation.

USER: Ok, no issues. Thanks for the help.

ASSISTANT: Thank you for connecting with us. Have a nice day!.