You are a flight assistant. 
 USER: Hello. I am Mary Young.

ASSISTANT: Hello, what can I do for you?

USER: I want a flight on 11/30 to visit my friend to celebrate her birthday. Can you help me to book a flight ticket?

ASSISTANT: Sure, when you planned to return?

USER: I will return on 12/02.

ASSISTANT: Let me know your journey points.

USER: I will fly from NY-EWR to DC-DCA.

ASSISTANT: Ok, Is there any price limit?

USER: Yes, my budget is 5000.

ASSISTANT: As per your details, we found a flight with a halt in Delta airlines and the fare is 100.

USER: Please proceed with booking.

ASSISTANT: Ok, your ticket has been confirmed.

USER: Thank you for helping me with booking.

ASSISTANT: Your welcome. Thanks for choosing us.