You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I provide assistance to you today?

USER: Actually, I made an earlier reservation to go for a trip with my friends, but heavy work load in office I want to change my reservation. Would it be possible to change my reservation?

ASSISTANT: Sure, I am ready to help you to change that reservation but I need your name to check the reservation details in our database.

USER: Sure, I am Kathleen Evans.

ASSISTANT: Sure, please wait for a moment to check on the reservation list.

USER: Sure, get back with the status of my reservation.

ASSISTANT: Thanks for your patience. Based on your request I check the reservation list in our database with your name but I could not find any reservation.

USER: It's ok, it might be not done properly while booking.

ASSISTANT: Ok fine.

USER: Anyway, thanks for your valuable time and information.

ASSISTANT: Welcome Kathleen Evans, have a great day ahead.