Hi.
user
Hello.
assistant
Jerry Martin here.
user
How can I aid you?
assistant
  Yesterday I booked a ticket to New York through your agency, your agent by mistakenly booked a ticket on wrong dates, so I want to change my reservation.
user
Ok, give me a minute.
assistant
Ok.
user
Sorry, there is no reservation found under your name.
assistant
That's ok, no issues.
user
Thank you for reaching us.
assistant
Most welcome.
user