You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Jonathan Baker.

ASSISTANT: How can I assist you today?

USER: I need to cancel my reservation, can you help me out please?

ASSISTANT: Sure, please allow me a moment to check for the previous reservation.

USER: Ok.

ASSISTANT: I found your reservation. Your reservation is cancelled successfully.

USER: Thank you.