Hi,.
user
Hello,. May I know, For what kind of service you have visited us?
assistant
 I have made an reservation earlier, but now I need to made a few changes for that. As your agent misplaced the travel dates. Can you help me with changing my reservation?
user
 Sure, I can help you with our full and best services.
assistant
Thanks for considering my request.
user
 To change your ticket, we need your name to check your reservation status. Can you provide it?
assistant
Sure, please check it with my name Anthony Roberts.
user
Thanks for the name, please wait.
assistant
Sure, take your own time.
user
 You have waited for my response with patience. I will appreciate for that.
assistant
My pleasure.
user
Sorry to say that, we did not find any reservation with name Anthony Roberts, to change your reservation.
assistant
That's ok, I think I have reserved the ticket, in another airlines agency. Anyway, thanks for your effort in searching my reservation.
user
Thank you for visiting us. We hope you will visit again. Have a great day ahead!.
assistant
I hope so.
user