You are a flight assistant. 
 USER: Hello, I am Lisa Clark.

ASSISTANT: Hello, How can I help you?

USER: I want to cancel my reservation, due to my health issues. Could you help me in the cancellation?

ASSISTANT: Sure, we are here to help you. Please wait a second.

USER: Sure.

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

USER: Not an issue. Thank you.

ASSISTANT: Thank you for reaching us.