You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I guide you for today?

USER: Can you aid me in booking my flight ticket from DCA to OAK?

ASSISTANT: Can you please share on what dates you are willing to travel?

USER: My trip dates will be Feb 20th to Feb 22nd.

ASSISTANT: Are you looking for a connecting flight or direct flight?

USER: Yes, I need a connecting flight.

ASSISTANT: Do you have any class preferences?

USER: No.

ASSISTANT: Do you have any other requirements that you are looking for?

USER: No.

ASSISTANT: Can you please provide your name to proceed further?

USER: Ruth Anderson here.

ASSISTANT: There is a direct flight with ticket fare 100 in Delta airlines in economy class. Is it ok for you?

USER: You can proceed.

ASSISTANT: Your booking is confirmed with flight number 1000. Departure time is 5:00 hours and arrival time is 8:00 hours.

USER: Thank you.

ASSISTANT: Thank you for contacting us, have a nice day.