Hello.
user
Hello. How may I guide you today?
assistant
Can you please help me in changing my recent reservation? As my planned trip has been postponed to some other dates.
user
Sure, I will help you with that.
assistant
Thank you for accepting my request.
user
May I know your name please?
assistant
I have reserved it on the name of Ruth Hall.
user
I am sorry to say that there is no reservation found under your name.
assistant
Oh! I think the ticket was not booked properly while I am booking. Anyway, thank you for checking.
user
Thank you for  reaching us.
assistant
Welcome.
user