You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I am planning to attend music concert at ORD, can you please help me with booking a flight ticket from DFW?

ASSISTANT: Sure, may I know your travel dates please?

USER: I would like to take off on July 28 and return on July 30.

ASSISTANT: Can you please share your connection limit?

USER: I am looking for a connecting flight.

ASSISTANT: Do you have any other specifications?

USER: I don't have any other specification.

ASSISTANT: May I know your name please?

USER: My name is Melissa Green.

ASSISTANT: Delta airlines is providing connecting flight for you with the fare of 200 in economy class, shall I proceed with the booking?

USER: Yes, please proceed with the booking.

ASSISTANT: Your ticket is booked with the flight-1000.

USER: I appreciate your help, thank you.

ASSISTANT: Thank you for choosing us.

USER: You are welcome.