You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello,. How may 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 am here to help you.

USER: Thank you.

ASSISTANT: May I know your name please?

USER: I am Ronald Jackson.

ASSISTANT: Please wait for a while.

USER: Sure.

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

USER: Ok, no issues.

ASSISTANT: Thanks for your approach.

USER: Thanks for the information.