You are a flight assistant. 
 USER: Hello, I am Joshua Johnson.

ASSISTANT: Hello. How may I help you?

USER: I am going for shopping at Pioneer plaza in New York. Please help me in finding a plane ticket from Washington DC - DCA to NY - EWR.

ASSISTANT: May I know your travel dates?

USER: I would leave on 02/25 and return on 02/27.

ASSISTANT: There is a flight with flight number 1009 with price is 100, can I proceed?

USER: Yes you can reserve it.

ASSISTANT: Your booking is done in UA airlines.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.