You are a flight assistant. 
 USER: Hi, I am Sarah Carter.

ASSISTANT: Hello. How may I abet you today?

USER: I want to cancel my reservation as my appointment with a lawyer got cancelled. Can you help me with it?

ASSISTANT: Sure, give me a moment I will check the reservation list.

USER: Sure.

ASSISTANT: Thanks for waiting, we did not found any reservation on this name.

USER: It's ok, thank you.

ASSISTANT: Thanks for choosing us.