You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello.

USER: Jack Martinez here.

ASSISTANT: How may I help you?

USER: I want to exhibit my arts in an exhibition at Washington DC- IAD, help me with booking the flight ticket?

ASSISTANT: Sure, I can help you.

USER: Thank you.

ASSISTANT: Please provide your requirements.

USER: Make sure to check a flight with in a price limit of 1000.

ASSISTANT: Ok. May I have your travelling dates?

USER: I want to travel on 08/20, and need to catch return flight on 08/22.

ASSISTANT: To proceed with booking I need your source point also.

USER: I want to board from PHL.

ASSISTANT: Ok, Please standby. Thanks for your time.

USER: Ok.

ASSISTANT: You have JetBlue plane which runs on particular dates. Flight number 1012.

USER: Please proceed with booking.

ASSISTANT: Shall I proceed to book with 1012? Ok. Your booking is done.

USER: Thanks for the help.

ASSISTANT: Thank you.