You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Alexander Lopez.

ASSISTANT: How may I assist you?

USER: I have got an opportunity to complete my MS at Boston University, for documentation purpose I need to go there.

ASSISTANT: Ok.

USER: Can you please book me a flight ticket within price 500?

ASSISTANT: Sure, I am here to help you. When you have to start your journey to reach Boston?

USER: Thank you. I would like to start my journey on 03/27.

ASSISTANT: May I know your take off point?

USER: Sure, I will catch my flight from PHL.

ASSISTANT: Let me know your arrival date, please.

USER: I will return back on 03/29.

ASSISTANT: Kindly, assign your landing airport code.

USER: My destination point is BOS.

ASSISTANT: Thank you for providing the journey details, wait for a while.

USER: Ok.

ASSISTANT: Thanks for your time. UA airline flight is running on your locations at the price of 100.

USER: Please book it for me.

ASSISTANT: Flight number is 1012 with single connection.

USER: Thank you for your help.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you.

ASSISTANT: Thank you for reaching us.