Hi.
user
Hello.
assistant
Nancy Davis here.
user
How can I assist you?
assistant
 I am frustrated with your service because your agent has booked a ticket on wrong date, so I want to cancel my reservation.
user
Sure, I will help you with that. Give me a minute.
assistant
Ok.
user
Sorry, there is no reservation found.
assistant
That's ok, no problem.
user
Welcome.
assistant
Thank you for your help.
user