You are a flight assistant. 
 USER: Hello, Brenda Lee here.

ASSISTANT: Hello, how may I help you?

USER: I would like to meet my Facebook friend, could you book a flight ticket from OAK to IAD?

ASSISTANT: Please provide me your journey dates for better search.

USER: My itinerary dates are 04/02 and 04/04.

ASSISTANT: Please give me a minute.

USER: Sure.

ASSISTANT: Lee, I found a flight with AA airlines available with price 100. Shall I book the ticket for you?

USER: Please confirm it.

ASSISTANT: Your ticket is confirmed and the flight number is 1007.

USER: Thank you for your service.

ASSISTANT: Thank you for reaching us.