Hello, I am Donald Hill.
user
Hello, how may I assist you?
assistant
I want to do some modifications in my existing reservation, can you help me?
user
Sure, hold on for a moment. Let me check.
assistant
Can I have a moment please?
user
Sorry Hill, there are no flights reserved on your given name.
assistant
No issues. Thank you for checking.
user
Welcome, thank you for choosing us. Have a great day.
assistant