You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Can you please help me to book a ticket from PHX to DFW?

ASSISTANT: Sure, may I know your planned trip dates?

USER: My travelling dates will be on Dec 6 to Dec 8.

ASSISTANT: Do you have any connection limit?

USER: I need a connecting flight.

ASSISTANT: Is there any airline preference?

USER: I would prefer normal-cost airlines.

ASSISTANT: May I know your good name?

USER: Mary Wright here.

ASSISTANT: May I know your arrival and depart timings?

USER: I am comfortable at any time.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: We found a connecting flight of fare 200 with airline United and number is 1017. Can I proceed?

USER: You can proceed to booking.

ASSISTANT: Your ticket has been confirmed in economy class.

USER: Thank you.

ASSISTANT: Thank you.