You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you?

USER: I am Nicholas Mitchell, can you help me to book a flight from DEN to BOS?

ASSISTANT: Sure, I can help you. Can I know your trip dates?

USER: My planned dates are 05/22 and 05/24.

ASSISTANT: Do you need any break?

USER: Yes, I need a connecting flight.

ASSISTANT: We found a Spirit airline, flight number:1026 and the price is 300.

USER: Proceed with booking.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you for your help.

ASSISTANT: Thank you.