You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I want to cancel my booking because of delay in my friends wedding, can you help me?

ASSISTANT: Sure, may I know your name please?

USER: My name is Raymond Jackson. Did you check my previous booking?

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

USER: Ok, no issues. Thanks for checking.

ASSISTANT: Thank you for choosing us.