You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Can you aid me to book a ticket from BOS to PHX?

ASSISTANT: Sure, can you please let me know your trip dates?

USER: My trip dates are Oct 18 and Oct 20 respectively.

ASSISTANT: Do you have any connection limit preference?

USER: I prefer for single connecting limit.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Could you help me with your name please?

USER: Dennis Hill here.

ASSISTANT: Here I found a connecting flight with Spirit Airlines and the airfare is about 100. Shall I proceed with flight 1019?

USER: Yes, please.

ASSISTANT: For a economy class your ticket is booked.

USER: Thank you for booking.

ASSISTANT: Thank you for reaching us.