You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello,. How can I assist you today?

USER: I made a reservation earlier on wrong date unknowingly. So, I want to change my reservation to make it correct. Can you assist me in that?

ASSISTANT: Sure, I am blissful to help you. To proceed further can I know your good name please?

USER: Kevin Campbell is my name.

ASSISTANT: Thanks for your name.

USER: OK.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Thank you for waiting. I have checked in reservation list to change, but could not find any reservation with your name.

USER: Ok, That's not a problem. Thanks for the information.

ASSISTANT: Thank you for choosing us, Have a cheerful day!.