You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you for the day?

USER: I would like to attend for prayers in Old North Church at Boston, BOS. Can you help me to book a ticket from IAD?

ASSISTANT: Sure, I am here to help you. May I know when you are willing to travel?

USER: Dates are 02/22 and 02/24.

ASSISTANT: May I know your good name?

USER: Anthony Lopez here.

ASSISTANT: Do you have any other specifications?

USER: Price limit is 200. I need halt in my journey.

ASSISTANT: Please wait for a moment.

USER: Sure, Make it fast.

ASSISTANT: WE found 1005 UA airlines which matches your specifications.

USER: Please do the booking.

ASSISTANT: Your booking has been done successfully.

USER: Thank you so much.

ASSISTANT: Thank you for reaching us.