You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how may I help you?

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

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

USER: My name is Daniel Green.

ASSISTANT: Ok, please give me a minute.

USER: Sure.

ASSISTANT: Thank you, sorry no reservation found with your name.

USER: Ok, no issues. Thanks for the help.

ASSISTANT: Thank you for reaching us, have a nice day.