You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I assist you?

USER: I want to meet my sister at Boston, and attend the world's most accomplished food and wine classic event. Can you please help me in booking my flight ticket?

ASSISTANT: Sure, can you please provide your source and destination?

USER: Source and destination is from DEN to BOS.

ASSISTANT: May I know your travelling dates?

USER: Travelling dates are from 06/09 to 06/11.

ASSISTANT: Please wait a moment.

USER: Ok.

ASSISTANT: Thanks for your waiting. We found a flight with a fare of 600 and having one connection.

USER: It is perfect, You can proceed for booking.

ASSISTANT: Flight number is 1002 with airline UA. Your ticket has been confirmed.

USER: Thank you for your splendid service.

ASSISTANT: Thank you for approaching us. Have a safe journey.