You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I want to attend a Marriage in Dallas. Can you please help me for booking the flight ticket?

ASSISTANT: Sure, can I have your planned travel dates please?

USER: My travelling dates are July 23 and July 25.

ASSISTANT: May I know your origin and destination airport codes please?

USER: My airport codes are EWR and DFW.

ASSISTANT: May I know your name please?

USER: My name is Raymond Davis.

ASSISTANT: Do you have any connection preference?

USER: I prefer single connecting flight. I would prefer normal cost airline.

ASSISTANT: Please hold on a moment.

USER: Ok, I will wait.

ASSISTANT: I found an economy class in Delta airlines with fare 100 and it has single connection. Can I book your ticket?

USER: Please proceed for booking the flight ticket.

ASSISTANT: Ok, your booking is confirmed with flight number 1016.

USER: Thanks for helping me.

ASSISTANT: Thank you for choosing us.