You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I render you today?

USER: I am planning to book a ticket from DEN to BOS. Can you please help me out?

ASSISTANT: Sure, on which dates would you like me to book a flight ticket for you?

USER: I am planning to travel on Jan 24 and return back on Jan 26.

ASSISTANT: Is there any connection limit?

USER: I am looking for a connecting flight.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: May I know your name?

USER: My name is Alexander Young.

ASSISTANT: Please give me a minute to check the availability o flights.

USER: Sure.

ASSISTANT: We found a connecting flight in United Airlines with flight number 1000 having an economy class. Shall I proceed for booking?

USER: That's fine, please proceed the booking.

ASSISTANT: Your booking has been confirmed.

USER: Thank you for your service.

ASSISTANT: Thank you for approaching us.