You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you now?

USER: Myself Mary Edwards, can you help me to book a flight ticket from Houston, TX - IAH to Washington DC -  DCA?

ASSISTANT: May I know your planned dates for this journey?

USER: Ok, please book a flight ticket for the dates 09/18 and 09/20.

ASSISTANT: Mary Edwards, do you have any specifications?

USER: Yes, it will be goo if you can book a direct flight for my trip.

ASSISTANT: Flight-1018 is available for your journey with 1 connection at the price of 200, can I proceed with booking your ticket?

USER: Ok, please book it as I wanted a direct flight for my journey but the connecting flight limit 1 is ok.

ASSISTANT: Your booking UA airlines with economy class.

USER: That is good to know, thank you for choosing our agency.

ASSISTANT: Thank you for reaching us. Most welcome.