You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I want to cancel my reservation, due to some issue.

ASSISTANT: Sure, I will help you with that. Please give me a minute.

USER: Ok.

ASSISTANT: May I know your name please?

USER: My name is Kathleen Collins.

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

USER: That's ok, thank you for your information.

ASSISTANT: Thank you for reaching us.

USER: Welcome.