Hello.
user
Hello. How can I assist you at this moment?
assistant
I want to change my travel dates in my previous reservation, can you help me with that?
user
Sure, I will help you with changing your reservation.
assistant
Thank you.
user
Can I have your name please for checking your reservation status?
assistant
Sure, my name is Jerry Wilson.
user
Ok, please wait a moment.
assistant
Ok.
user
Sorry Jerry Wilson, no reservation has found under your name to change.
assistant
Oh! It's ok no problem. Thank you for your information.
user
Thank you for choosing us, have  a good day.
assistant