You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Shirley Williams here.

ASSISTANT: How may I help you, Williams?

USER: I want to book a flight ticket from OAK to DCA in the month of February.

ASSISTANT: Sure, please provide me your journey dates.

USER: My travelling dates are 02/15 and 02/17.

ASSISTANT: Please wait for a minute.

USER: Ok, sure take your time.

ASSISTANT: I found a flight with Spirit airlines available with price 200. Shall I book the ticket for you?

USER: Yes, please book it.

ASSISTANT: Your ticket is confirmed and the flight number is 1028.

USER: Thank you for booking my flight ticket.

ASSISTANT: Thank you for choosing us, have a good day.