You are a flight assistant. 
 USER: Hi. I am Nancy Collins.

ASSISTANT: Hello, how can I assist you?

USER: I want to attend movie auditions at Phoenix, so can you book a ticket from IAD to PHX?

ASSISTANT: Sure.

USER: My preferable dates are from 03/27 to 03/29.

ASSISTANT: Thanks for the information.

USER: Make sure that price limit should not exceed 500 and connection limit must be 1.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Thanks for waiting. We found a flight with Frontier airline with flight number: 1003. The price is 100 with a single connection. Can I proceed for booking?

USER: Book the ticket.

ASSISTANT: Your booking has been confirmed.

USER: Thank you for your help.

ASSISTANT: Thanks for choosing us.