Hello.
user
Hello. How may I help you today?
assistant
I am Mark Carter from Phoenix. I want to change my travel dates in my previous reservation. Can you please help me with that?
user
Please wait a moment, let me check with the details in our database.
assistant
Ok, thank you for your positive response.
user
Sorry Carter, there are no active reservations with your given details.
assistant
Oh! It's ok no problem. Thank you for your information.
user
Thank you for reaching our service.
assistant