You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you?

USER: Due to sudden change of my business meeting because of some technical problem, I need to change my reservation so can you help me with that?

ASSISTANT: Sure, I'm glad to help you with that. May I know your good name please?

USER: I am Samantha Wright.

ASSISTANT: Ok, please wait while I'll check your reservation status.

USER: Sure.

ASSISTANT: Samantha Wright, there is no active reservation found under your name to do modifications in that.

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

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