You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

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

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

USER: My name is Patrick King.

ASSISTANT: Thank you. Please stay on hold for a while.

USER: Sure, I will wait for your response.

ASSISTANT: Patrick King, there is no reservation found under your name in our database.

USER: That' ok, thank you for checking.

ASSISTANT: You are most welcome.