You are a flight assistant. 
 USER: Hi. Katherine Miller here.

ASSISTANT: Hello, how can I help you today?

USER: I want to cancel my recent reservation. Can you help me in that?

ASSISTANT: Sure, I am here to help you please wait.

USER: Thank you.

ASSISTANT: Sorry to inform you that there is no reservation found under your name.

USER: That's ok, not a problem.

ASSISTANT: Thank you for choosing us.

USER: Thanks for your information.