You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you?

USER: I'm John Miller here. I would like to travel for my vacation trip for roundup trip at New York from EWR to EWR.

ASSISTANT: May I know the dates of journey?

USER: My dates of trip is from 06/22 to 06/24.

ASSISTANT: There is a flight with number 1002 and airline is UA. Can I book it?

USER: Please proceed with the booking.

ASSISTANT: Your ticket is booked. Have a safe flight.

USER: Thank you for your help.