You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Patrick King here.

ASSISTANT: How can I help you today?

USER: I want to travel from IAD to LAS for attending a Seminar. Can you please help me for booking the flight ticket?

ASSISTANT: Sure, I will help you. Please mention your travel dates.

USER: My travelling dates are from 11/11 to 11/13.

ASSISTANT: Please, stay online I will check the flights and revert you.

USER: Make sure my connections limit is 1.

ASSISTANT: We find a flight ticket in UA airline and 1001 as flight number with 1 connection.

USER: Please proceed for booking the flight ticket.

ASSISTANT: King, your ticket is reserved with price 100.

USER: Thanks for helping me.

ASSISTANT: Thank you for reaching us.