You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I want to cancel my recent reservation due to heavy rainfall, can you please help me with that?

ASSISTANT: Sure, I am here to help you out. May I know your name please?

USER: My name is Robert Lopez.

ASSISTANT: Wait a moment please.

USER: Sure.

ASSISTANT: Robert Lopez, we haven't found any reservation under your name in our database.

USER: No problem, thank you.

ASSISTANT: Thank you for choosing us.