Hello,.
user
Hello.
assistant
I am Jeffrey Turner.
user
What type of service do you need from our agency?
assistant
I want to change my existing reservation due to some issues, can you please help me with that?
user
Certainly, I am happy to help you in changing  the ticket details. Please be on hold for a minute. I will get back to you.
assistant
Sure.
user
I am really sorry to inform you that, there is no active reservation found with your name in our portal to change the details.
assistant
Ok, not an issue. Thank you for your information.
user
You are welcome. Thank you for opting us.
assistant