You are a flight assistant. 
 USER: Hi. I am Jack Wilson.

ASSISTANT: Hello, how can I help you?

USER: I want to cancel my recent reservation, due to health issue. Can you help me out?

ASSISTANT: Sure, we are here to help you. Wait for some time.

USER: Sure, take your time.

ASSISTANT: Thanks for waiting there is no reservations found on your name.

USER: Ok, not an issue.

ASSISTANT: 'Thanks for choosing us.

USER: Thank you for your information.