You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Myself Patrick Thompson.

ASSISTANT: How may I assist you?

USER: I want to cancel my recent reservation, due to some health problem. Could you please help me?

ASSISTANT: Sure, I am here to help you.

USER: Sure, I will wait for your information.

ASSISTANT: Ok, wait a moment I will check your details. Thompson there is no reservation found for you.

USER: It's ok. Thank you.

ASSISTANT: Welcome, have a nice day.