You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Owing an emergency, I want to cancel my recent reservation. Can you please help me out?

ASSISTANT: Sure, I can help you. May I know your name?

USER: My name is Robert Baker.

ASSISTANT: Thank you. Please wait, let me check your reservation status.

USER: Sure, I will wait for your information.

ASSISTANT: Sorry, I did not find any reservation under your name in our database.

USER: That's ok, thank you for checking.

ASSISTANT: You are welcome and thank you for choosing us.