You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you today?

USER: My trip got cancelled, so I want to cancel my ticket. Can you please help me in cancellation process?

ASSISTANT: Sure, I am glad to help you with that. Can I know your name?

USER: Thank you for accepting my request. Ok, my name is Jonathan Perez.

ASSISTANT: Sorry for the trouble, there is no reservation found on your name.

USER: It's ok, thank you for providing the information.

ASSISTANT: Thank you for approaching  us.