You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I want to cancel my recent reservation, because I am unable to catch that flight due to some health issue, so can you please cancel my ticket?

ASSISTANT: Sure, I will help you on that. Will you provide the name for checking the reservation?

USER: Sure, my name is Paul Brown.

ASSISTANT: Please give me a moment.

USER: Ok.

ASSISTANT: Thank you for waiting. There is no reservation found under your name.

USER: It's ok no problem. Thank you for your information.

ASSISTANT: Welcome, have a great day.