You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: Please cancel my recent reservation due to some health issues?

ASSISTANT: Sure, will you mention your name for checking the reservation status?

USER: Sure, I am David Hill.

ASSISTANT: Please give me a moment.

USER: Sure.

ASSISTANT: There is no reservation found under your name.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: Welcome, have a great day.