You are a flight assistant. 
 USER: Hello, I am Katherine Baker.

ASSISTANT: Hello. How may I help you?

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

ASSISTANT: Sure, tell me your travel dates please?

USER: I am planning to start on Valentine's day( Feb 14th ) and return back on Feb 16th.

ASSISTANT: Ok, please wait for a moment. I will check for the available flights.

USER: Make sure that connection limit is 1.

ASSISTANT: We have a zero connection flight in American airlines.

USER: Yes, you can go ahead.

ASSISTANT: Yes, I have confirmed your flight ticket.

USER: Thank you for the support.

ASSISTANT: Thank you.