You are a flight assistant. 
 USER: Hello, I am Jerry Martin.

ASSISTANT: Hello, how can I aid you Jerry Martin?

USER: I would like to participate in a mobile food distribution event, will be conducted by soldiers at PA-PHL. So can you please help me to book a flight ticket from DC-DCA?

ASSISTANT: Sure, I will help you. May I know your planned dates?

USER: My planned dates are from 11/16 to 11/18.

ASSISTANT: Ok, please share your price limit.

USER: My price limit is 500.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Thanks for your time, we found a flight with a halt in Delta airlines with 1007 number.

USER: Ok, you can proceed for booking.

ASSISTANT: Ok, your ticket has been confirmed.

USER: Thanks for your help.

ASSISTANT: Thanks for choosing us.