You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

USER: I am Betty Taylor. I just want to book a ticket from MA-BOS to WA-SEA. My travelling dates are from 12/23 to 12/25.

ASSISTANT: Wait a minute.

USER: Make sure that price limit is 500 and connection limit is 1.

ASSISTANT: There is a flight with connection 1 and airline is Delta.

USER: Ok. Book the ticket.

ASSISTANT: Your ticket is booked with number 1027.

USER: Thank you.

ASSISTANT: Have a safe flight.