You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I am planning to meet my family friend at Phoenix, PHX. Can you please help me in booking a flight ticket from Washington, IAD?

ASSISTANT: Sure, when are you planning to travel?

USER: Dates are 01/26 and 01/28.

ASSISTANT: Do you have any other requirements?

USER: Price should not cross 5000. I need break in my journey.

ASSISTANT: May I know your name?

USER: Samuel White here.

ASSISTANT: Delta airlines with single connection and price is 100 of 1009 flight.

USER: Please do the booking.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you so much.

ASSISTANT: Thank you.