Hello.
user
Hello. How may I help you today?
assistant
I have booked a ticket last week on a wrong date so, I want to change my existing reservation. Can you help me with this?
user
Sure, I will help you. Can I know your name for changing reservation?
assistant
Sure, I am Dennis Mitchell.
user
Give me a second. Sorry to inform you that there is no reservation found on your name in our database.
assistant
That's ok.
user
Thank you for approaching us.
assistant
Thank you for your information.
user
Welcome.
assistant