You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am looking for a flight from EWR to DFW, can you please help me in booking?

ASSISTANT: May I know your desired travel dates please?

USER: My travelling dates are Nov 18 and Nov 20.

ASSISTANT: Do you have any specifications?

USER: I prefer normal cost airline.

ASSISTANT: May I know your name please?

USER: My name is Brian Lewis.

ASSISTANT: There is a flight with connection limit 1 and fare 200, shall I proceed for booking?

USER: Please proceed.

ASSISTANT: Your ticket is booked, flight number 1004 with Delta Airlines.

USER: Thank you for booking.

ASSISTANT: Thank you for opting us.