You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Shirley Scott here. I need your assistance in booking the ticket from ATL to EWR, to attend a house warming function.

ASSISTANT: Sure, may I know the planned dates of your journey?

USER: My planning dates are from 09/19 to 09/21.

ASSISTANT: Delta airline is providing service with flight 1012, shall I proceed for booking?

USER: Please ensure that price of the ticket is 200.

ASSISTANT: Yes, ticket costs for 200 only.

USER: Ok, proceed the booking.

ASSISTANT: Your ticket is booked, have a safe journey.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing our service.