Hello.
user
Hello. How may I help you out?
assistant
I am willing to change my travel dates in the past ticket, can you please help me to change the ticket details?
user
Sure, I will help you in changing the reservation. May I know your name please?
assistant
Thank you for accepting my request.  My name is Gary Robinson.
user
Sorry, there are no reservations found.
assistant
Oh! I think my ticket is not reserved properly. Anyways thank you for checking.
user
Thank you for reaching us.
assistant
You are welcome.
user