You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I want to book a ticket from PHX to DFW to attend seminar, can you help me in booking?

ASSISTANT: Sure, I am here to help you. Can you please share your trip dates?

USER: I am departing on Oct 13 and return on Oct 15.

ASSISTANT: May I know your name?

USER: My name is Kimberly Campbell.

ASSISTANT: May I know your connection limit?

USER: I need a flight with connection limit 1.

ASSISTANT: Is there any class preference?

USER: I need a flight with business class.

ASSISTANT: Do you have any specifications?

USER: I need a flight with normal-cost airline.

ASSISTANT: Sorry, there are no flights found on your travel dates.

USER: That's ok, thank you for your information.

ASSISTANT: Thank you for choosing us.