You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Sarah Carter.

ASSISTANT: How can I assist you Carter?

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

ASSISTANT: Sure, I can help you with that. Please be online.

USER: Sure.

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

USER: Ok, not an issue. Thank you for your time.

ASSISTANT: Thank you for reaching us.