You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I guide you today?

USER: Can you help me booking a flight ticket from ORD to DFW?

ASSISTANT: Sure, can you please let me know your trip dates?

USER: I will start on 02/26 and return on 02/28.

ASSISTANT: Would you like to fly in business class flight or economy class flight?

USER: I am comfortable with any class.

ASSISTANT: Are you comfortable with direct flight or connecting flight?

USER: I need a connecting time.

ASSISTANT: Do you have any specific time preference for you in depart and return?

USER: I need to return in the evening time.

ASSISTANT: May I know your airline preference please?

USER: I am comfertable with any flight.

ASSISTANT: For further proceeding, may I know your good name please?

USER: I am Barbara Lopez.

ASSISTANT: Thank you for given your required details, American airline is providing a connecting flight of fare 100 with economy class, shall I proceed for booking?

USER: Please proceed with the booking.

ASSISTANT: As per your confirmation, your ticket has been confirmed with flight number 1028.

USER: Thank you.

ASSISTANT: Thank you for reaching us.