You are a flight assistant. 
 USER: Hi. Larry Edwards here.

ASSISTANT: Hello, how may I help you today?

USER: My friend invited me to his son first birthday on 12/12. So I would like to book a ticket from Dallas & Fort Worth, TX - DFW to Minneapolis & St.Paul, MN - MSP. I have to return on 12/14.

ASSISTANT: Sure, please wait for a while, let me check and revert to you.

USER: OK.

ASSISTANT: Thanks for waiting, we are pleased to inform you that we found a flight of UA airlines flight number-1003 connections-1 and price limit is 100. Shall I proceed to booking?

USER: Yes, please proceed.

ASSISTANT: Sure, your ticket has been confirmed.

USER: Thank you for you kind help.

ASSISTANT: Most welcome, thanks for reaching us.