You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Due to some health issue I just want to cancel my reservation, please help me with that.

ASSISTANT: Sure, I can help you with that. May I know your name to proceed further?

USER: My name is Samuel Collins.

ASSISTANT: Please allow me a moment to check the details for you.

USER: Ok.

ASSISTANT: Your patience is greatly appreciated. Samuel, I see that there is no reservation found under your name.

USER: Thank you. Ok, no problem.

ASSISTANT: You are welcome. Thank you for contacting us.

USER: Thank you for your information.