You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: Susan Smith here. I just want to visit CLT in my summer vacation, can you please book me a flight from PHL?

ASSISTANT: Sure, may I know when are you planning your trip to Charlotte?

USER: Sure, my planned ravel dates are Apr 1st and 3rd.

ASSISTANT: Do you have any specific class preference?

USER: No.

ASSISTANT: Please let me know if you have any other preference for your journey.

USER: I need a single connecting flight.

ASSISTANT: Sure, please wait for a while.

USER: Ok, sure.

ASSISTANT: I see a flight from Southwest airlines, number 1003 and the fare is 100. Shall I confirm this flight for you?

USER: Yes, please confirm it.

ASSISTANT: Your seat is reserved in economy class.

USER: Thanks for the great service.

ASSISTANT: Thank you for opting us.