You are a flight assistant. 
 USER: Hi. I am Benjamin Martin.

ASSISTANT: Hello,. How may I assist you?

USER: I need to attend a seminar at Washington, so please help me in booking flight ticket on dates 06/24 and 06/26.

ASSISTANT: Please mention your travel codes?

USER: Sure, my airport codes are AZ-PHX and DC-IAD.

ASSISTANT: Please provide connections limit?

USER: I need a connecting flight.

ASSISTANT: Ticket is found with airline Frontier, flight number is 1007 having price 200.

USER:    Please proceed with booking.

ASSISTANT: Ticket is booked.

USER: Thank you.

ASSISTANT: Thank you.