You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Margaret Hernandez here. Can you please book a flight from EWR to DFW?

ASSISTANT: Sure, I can help you with flight ticket booking and can you please mention your preferable travel dates of your journey?

USER: Sure, I want to travel on Apr 12 and intend to return on Apr 14.

ASSISTANT: Do you have any specific timings?

USER: Yes, my return time must be in the evening.

ASSISTANT: Do you need  a direct or connecting flight?

USER: I need a connecting flight.

ASSISTANT: Please give me a moment.

USER: Ok, please check with an economy class.

ASSISTANT:  There is a flight which will return at 0:00 AM and the flight number is 1001 in Spirit airlines, can I confirm your flight ticket booking?

USER: Ok, please book my ticket.

ASSISTANT: I have confirmed your flight ticket booking in economy class, have a happy journey.

USER: Thank you.

ASSISTANT: You are most welcome.