You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I would like to visit High Roller in Las Vegas, can you book a ticket from PHL to LAS?

ASSISTANT: May I know your travelling dates please?

USER: My planned dates are 02/15 and 02/17.

ASSISTANT: I found a flight ticket as per your details in Delta airlines, it has 1 connection. Is that ok for you?

USER: You can book it.

ASSISTANT: May I know on who's name the ticket should be?

USER: Myself Catherine Thomas.

ASSISTANT: Thank you for providing your details, your ticket is booked with 1009 flight number.

USER: Thank you for booking.

ASSISTANT: Welcome.