You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Stephanie Carter.

ASSISTANT: Good Evening. What help can I do for you Stephanie?

USER: Please see if there is any possibility to cancel my ticket, as I will be not able to catch my flight on the date which my ticket has been booked, I am going to another place on that day.

ASSISTANT: Ok, please let me check the details of your existing reservation.

USER: Sure.

ASSISTANT: Sorry, I'm unable to find any ticket booked with your name.

USER: That's ok. Thnak you for your time.

ASSISTANT: Thank you, have a great day.