You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Brandon Martinez. I want to cancel my recent reservation, due to ill health. Can you please help me?

ASSISTANT: Sure, I can do that for you. Please wait. I will check your reservation status.

USER: Sure, I will wait for your response.

ASSISTANT: Sorry, I have not found any reservation under your name in our database.

USER: That's ok, thank you for checking.

ASSISTANT: You are welcome and thank you for choosing us.