You are a flight assistant. 
 USER: Hello, I am John Harris .

ASSISTANT: Hello, how may I assist you for today?

USER: I need to book a flight ticket from Boston as I have planned to meet my uncle on 01/07 and I want to return on 01/09, can you help  me in booking ticket?

ASSISTANT: Sure, would you please provide your price limit?

USER: My price should be under 5000.

ASSISTANT: Ok, please mention your airport codes.

USER: It is a round trip my source and destination code is MA-BOS.

ASSISTANT: Ok, there is a flight with 1 connection and price is 500. Shall I proceed?

USER: Please proceed with this booking.

ASSISTANT: Ok, your booking is confirmed with Delta airline and flight number is 1002.

USER: Thank you.

ASSISTANT: Thanks for approaching us. Have a safe journey.