You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: My name is Kathleen Clark. I would like visit Philadelphia Museum of Art, can you please book the ticket from LAS to PHL?

ASSISTANT: Sure, may I know your travelling dates?

USER: The dates are 10/16 and 10/18 respectively.

ASSISTANT: Ok, wait for a minute.

USER: Make sure that price should not exceed 500.

ASSISTANT: Yes, I found a flight-1000 with Delta airlines, can I proceed?

USER: Yes, please proceed with booking.

ASSISTANT: Yes, your ticket is confirmed.

USER: Thank you for helping me out.

ASSISTANT: Thank you for contacting us.