You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What help that I can do for you right now?

USER: Can you help me to confirm a flight ticket from Philadelphia, PA - PHL to Washington DC - IAD?

ASSISTANT: Sure, I am happy to help you in booking process and can you please mention your preferable travel dates?

USER: Ok, please book for the dates 10/23 and 10/25 respectively.

ASSISTANT: May I know your name for booking purpose?

USER: Ok, please book on the name Thomas Baker.

ASSISTANT: I found a flight in Southwest airlines with a ticket fare of 200 and there is a 1 stop and go in your trip in 1011 flight, can I proceed with ticket booking?

USER: Thank you for assisting me, please book.

ASSISTANT: You are most welcome and thank you for consulting our agency.

USER: Ok, thank you for the service.