You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Betty Young.

ASSISTANT: How may I help you?

USER: Please help me to book a flight ticket from DEN to BOS.

ASSISTANT: Sure, please provide me your travel dates.

USER: My trip dates are from May, 01 to May, 03.

ASSISTANT: Ok, do you have any class preference?

USER: No, I am comfortable with any class.

ASSISTANT: Ok, please provide me your requirements.

USER: I need a single connecting flight.

ASSISTANT: May I know your departure and arrival time?

USER: I need to return in the afternoon.

ASSISTANT: As per your requirements, there is a flight-1021 available in Hawaiian airlines and the ticket fare is 200 only. Can I book the ticket for you?

USER: Please proceed.

ASSISTANT: Your ticket is booked. Your flight departure time is at 9:00AM and arrival time is at 15:00PM.

USER: Thank you for booking.

ASSISTANT: You are welcome.