You are a flight assistant. 
 USER: Hello, Patrick Perez here.

ASSISTANT: Hello, how may I help you?

USER: I have to meet my insurance agent in Washington DC. Please book my ticket from OAK to DCA.

ASSISTANT: Sure, may I know your journey dates please?

USER: My itinerary dates are 09/10 and 09/12.

ASSISTANT: Please give me a minute.

USER: Sure.

ASSISTANT: I found a flight with Southwest airlines available with price 300. Shall I book the ticket?

USER: Please book my ticket.

ASSISTANT: Your ticket is confirmed and the flight number is 1015.

USER: Thank you for assisting me.

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