You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: I am Scott Walker. I need a plane ticket from PHL to DCA. Can you please help me?

ASSISTANT: Please provide your trip dates.

USER: My trip dates are 02/19 and 02/21.

ASSISTANT: Please hold on a moment.

USER: Ok, please check the flight having a connection limit 0.

ASSISTANT: Thank you for your waiting, there is a flight for you in UA airlines with price 100. Shall I proceed?

USER: Ok, then please confirm my ticket.

ASSISTANT: Ok, your ticket is confirmed with flight number 1005.

USER: Thank you for helping me.

ASSISTANT: Thank you for choosing us.