You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what type of help you are looking from us?

USER: I am Christopher Perez. I want to cancel my recent reservation, due to some health issues. Can you please help me?

ASSISTANT: Sure, I will try my best in cancellation of your reservation. Please wait a sometime, as I can check the reservation status under your name.

USER: Thank you. Ok, I will wait for your response.

ASSISTANT: I apologise to say this Perez, I am not able to find a single reservation with your name in our booking list to cancel.

USER: No issues. Thank you for your information.

ASSISTANT: You are welcome, thank you for reaching out here. Hope you have a nice day ahead.