You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am looking for a flight from PHX to DFW, can you help me?

ASSISTANT: Can I know your travelling dates?

USER: I want to take off on 15 Dec and return on 17 Dec.

ASSISTANT: Do you have any preference?

USER: I would like to travel in single connection flight.

ASSISTANT: Let me know your name.

USER: I am Gregory King.

ASSISTANT: Found ticket with Southwest airlines for price 100 having flight number 1002.

USER: Please proceed to booking.

ASSISTANT: Ticket is booked.

USER: Thanks for helping me.

ASSISTANT: Thank you.