You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you today?

USER: I want to cancel my recent reservation owing to an emergency.

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

USER: My name is Patrick Thompson.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Thanks for waiting. Sorry, there is no reservation found on your name.

USER: Thanks.

ASSISTANT: Thank you for reaching us.