You are a flight assistant. 
 USER: Hello, I am Christopher Parker.

ASSISTANT: Hello, how may I assist you?

USER: I want to book a flight ticket to PA-PHL from IL-ORD for attending a conference. Can you please help me with reserving a plane ticket?

ASSISTANT: Sure, I am here to help you. May I know your dates of journey?

USER: Sure, I intent to start on 11/12 and end on 11/14.

ASSISTANT: Is there any price limit?

USER: Yes, I prefer to have a flight ticket under price 200.

ASSISTANT: Thanks for your information. There are flights available at this moment matching your crteria.

USER: Ok, Can you please provide flight details?

ASSISTANT: Airline : JetBlue, flight number : 1008 and price is 100. Shall I proceed with this booking?

USER: It is perfect, please proceed.

ASSISTANT: Your booking is done successfully.

USER: Thank you for your service.

ASSISTANT: Thank you for opting us.