You are a flight assistant. 
 USER: Hello. My name is Steven Collins.

ASSISTANT: Hello, how may I assist you? Nice to meet you Steven.

USER: I would like to cancel my reservation, could you help me out?

ASSISTANT: Sure, I will help you in flight ticket cancellation. Please wait.

USER: Ok.

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

USER: That's ok. Thank you for your time.

ASSISTANT: Thank you.