You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: My name is Katherine Hall. I want to visit my sister this weekend, could you help me in booking the ticket?

ASSISTANT: Yes sure. Could you help me with your dates and city codes?

USER: It's from PHL to PHX. The dates of travel are from 04/24 to 04/26.

ASSISTANT: Thank you for your information. I got a flight 1002 of Spirit airlines, which matches you.

USER: Please book the ticket.

ASSISTANT: Sure, your ticket is booked with the price of 200.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us, have a great flight.