You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I am Gregory Jackson, I want to cancel my ticket, my plan to meet my sister is cancelled as she is coming to meet me. Can you cancel my ticket?

ASSISTANT: Sure, we are here to help you. Please wait a moment, let me check your reservation and let you know.

USER: Sure.

ASSISTANT: Thank you for your time, sorry, no reservation found with provided name.

USER: Ok, thank you for the details.

ASSISTANT: Thank you for picking us.