You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: Due to my ill health, I would like to cancel my recent reservation. Please help me out.

ASSISTANT: Please mention your name.

USER: My name is Brandon Roberts.

ASSISTANT: There is no reservation found under your name. Thanks for reaching us, have a great day.

USER: Ok, no issues. Thank you for your information.

ASSISTANT: Welcome.