You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello.

USER: I am Brenda Campbell.

ASSISTANT: How can I assist you?

USER: Can you help me in booking a flight ticket from EWR to PHL?

ASSISTANT: Sure, can I know the travel dates please?

USER: I want to travel on 12/18, and need to catch return flight on 12/20.

ASSISTANT: Ok, wait a moment please.

USER: Sure.

ASSISTANT: There is a connecting flight in Spirit airline with price 100, can I book it?

USER: Proceed with the booking.

ASSISTANT: Your ticket has been booked with flight number 1004.

USER: Thanks for the help.

ASSISTANT: Thank you for approaching us.