You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello. How can I aid you?

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

ASSISTANT: Sure, may I know your name?

USER: Stephen King is my name.

ASSISTANT: Sorry, there is no reservation found under your name.

USER: Ok, thank you for your response.

ASSISTANT: Thank you for picking us.