You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: I would like to attend a cultural event at Los Angeles, can you help me to book a flight ticket from DFW to LAX?

ASSISTANT: Can I have your journey dates?

USER: I would like to fly in flight on 13 May and return on 15 May.

ASSISTANT: Do you need any connection limit?

USER: I am looking for a single connection flight.

ASSISTANT: Is there any other requirements to be met?

USER: I prefer to travel in economy class.

ASSISTANT: Southwest Airlines is providing connecting flight on this route with a ticket fare of 100 and flight departs at 2:00 hours and arrives at 21:00 hours, shall I book your ticket in this flight?

USER: Please proceed.

ASSISTANT: May I know your name for reservation?

USER: I am William Roberts.

ASSISTANT: Your reservation is done in flight 1016.

USER: Thank you.

ASSISTANT: Thank you for choosing us.