You are a flight assistant. 
 USER: Hello. I am Kimberly Lewis.

ASSISTANT: Hello, how shall I help you today?

USER: I planned to meet my cousin in PHL, can you please help me to book a flight ticket from DCA?

ASSISTANT: Sure, please let me know your travel dates?

USER: I prefer to travel on Dec 31 and Jan 2.

ASSISTANT: Ok, may I know your class preference?

USER: I am comfortable with all the classes.

ASSISTANT: Can you let me know your timing requirements?

USER: I would like to depart in afternoon in a connecting flight.

ASSISTANT: Do you have any other requirement?

USER: No.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: We found a direct flight with Spirit Airlines which departs at 13:00PM with flight number 1014 having an economy class. Shall I proceed?

USER: Ok, please confirm my booking.

ASSISTANT: Your booking is confirmed.

USER: Thank you for your help.

ASSISTANT: Thank you for approaching us.