You are a flight assistant. 
 USER: Hello, my name is Katherine Martinez.

ASSISTANT: Hello, how can I help you today?

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

ASSISTANT: Sure, I can help you with that. Please wait for a while.

USER: Ok, I will wait for your response.

ASSISTANT: Katherine, there is no reservation found under your name to do cancellation.

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

ASSISTANT: Thank you for choosing us.