You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I guide you for today?

USER: I am Gregory Martin. I would like to cancel my reservation as I am having delegates meet, can you please help me out?

ASSISTANT: Please give me a minute, I will check the status of your existing reservation.

USER: Sure.

ASSISTANT: Sorry, there is no reservation found under your name.

USER: Ok no problem, thank you for your services.

ASSISTANT: Thank you for contacting us, have a nice day.