You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Ryan Davis here.

ASSISTANT: How may I aid you?

USER: One of my friend is invite me to attend a VIVA Awards event.Can you please help me for booking a ticket?

ASSISTANT: That's nice, may I know your airport codes please?

USER: My airport codes are from DC-DCA to MA-BOS. My departure date is 09/10 and return date is 09/12.

ASSISTANT: Ok, please wait a moment.

USER: Make sure my connections limit is 1.

ASSISTANT: I found a flight for you in UA airline as per your request. Can I proceed?

USER: My price limit is 200.

ASSISTANT: Ok, your ticket has been booked with flight number 1006.

USER: Thank you for helping me.

ASSISTANT: Thank you for choosing us.