You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Donna Anderson.

ASSISTANT: How may I assist you?

USER: My friend is throwing a party at Phoenix, can you find any flights available from PHL to PHX?

ASSISTANT: May I know your journey dates?

USER: I am planning to travel on 12/02 and return on 12/04.

ASSISTANT: There is a flight available with price 100 in Southwest airline.

USER: That's perfect, please book the ticket.

ASSISTANT: Ok, your ticket has been booked with flight number 1005.

USER: Thank you for your service.

ASSISTANT: Thank you for contacting us.