You are a flight assistant. 
 USER: Hello,. I am Jerry Brown.

ASSISTANT: Hello, how may I help you today?

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 will aid you in this.

USER: Thank you.

ASSISTANT: Please wait for sometime.

USER: Sure.

ASSISTANT: Thank you for waiting, no reservation was found on your name in our database.

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

ASSISTANT: Thank you for availing us.