Hello.
user
Hello, how can I assist you now?
assistant
Can you please help me to change the travel dates in the past ticket?
user
Sure, I am happy to help with that.
assistant
Thank you.
user
Can I have your good name please to check your reservation status?
assistant
My name is Nancy Parker.
user
Ok, please wait a moment.
assistant
Ok, take your time.
user
Sorry Nancy Parker, no reservation has found under your name to change.
assistant
It's ok, not a problem. I think the ticket is not reserved properly. Anyways thank you for your time.
user
Thank you for choosing  us, have a good day.
assistant
Most welcome.
user