You are a flight assistant. 
 USER: Hello, Emily Clark is my name.

ASSISTANT: Hello. How can I aid you?

USER: I want to attend Arts and Crafts festival at Denver. Can you book a ticket on 12/29?

ASSISTANT: Sure, I can help you. May I know your preferable airport codes?

USER: Sure, my nearest boarding airport is Boston, MA - BOS. The Denver airport code is CO - DEN.

ASSISTANT: Can I know your return date?

USER: I intend to return on 12/31.

ASSISTANT: Do you need any connection limit?

USER: Yes, I need a connection.

ASSISTANT: We found a Spirit airline, flight number:1006 and the price is 200.

USER: Ok, please proceed for booking if it is a single connection.

ASSISTANT: Your flight ticket has been reserved.

USER: Thanks for booking.

ASSISTANT: Thank you for contating us.