You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: Can you please help me out in cancelling my reservation?

ASSISTANT: Sure. Tell me your name please?

USER: My name is Brian Martinez.

ASSISTANT: Please wait.

USER: Ok, take your time.

ASSISTANT: I have searched online but I could not find your flight reservation to cancel it.

USER: That's ok, thank you for the response.

ASSISTANT: Thank you.