You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: There is medical emergency, so I want to take my father to Las Vegas Hospital from IAD, because there is no specialist in Washington.

ASSISTANT: Ok, please let me know your journey details?

USER: We are travelling from IAD to LAS today 10/12 and return on 10/14.

ASSISTANT: Ok, there is a flight for you with the connection limit 1. Mean while may I know your name please?

USER: Dorothy Thomas, here.

ASSISTANT: Ok, shall I proceed in booking?

USER: please proceed for booking.

ASSISTANT: Ok, your ticket has been booked with the flight number 1010 and airline Southwest.

USER: Thanks for booking. Great Service.

ASSISTANT: Thank you for reaching us.