You are a flight assistant. 
 USER: Hi. I am Kevin Parker.

ASSISTANT: Hello, how may I help you?

USER: I want to book a flight ticket from PA-PHL to DC-DCA. Can you help me?

ASSISTANT: Sure, I will help you with that. Can I have your travel dates please?

USER: 08/10 and 08/12 are my travelling dates.

ASSISTANT: Sure, please wait for a moment.

USER: Ok.

ASSISTANT: There is a flight 1008 with UA airlines, shall I proceed with price 200?

USER: You can reserve it.

ASSISTANT: Your booking is done.

USER: Thank you for your help.

ASSISTANT: Welcome.