Hello.
user
Hello. Is there any help that you are expecting from my side?
assistant
Actually my planned trip got postponed, so can you please change the  details?
user
Sure, let me check with your information in our previous ticket booking list.
assistant
Sure, take your time.
user
Can I have your name please?
assistant
I am Charles Parker.
user
I am unable to find your previous reservation in our ticket booking list.
assistant
It's ok, not a problem with that. Anyways thank you for checking.
user
You are most welcome and thank you for contacting us.
assistant