You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Mary Baker here. Can you help me to find a flight from IAD to DCA?

ASSISTANT: May I know your desired travel dates please?

USER: My travelling dates are 08/13 and 08/15.

ASSISTANT: Please wait a while, I will check and inform you.

USER: Sure.

ASSISTANT: There is a flight with connection limit 1 and fare 10, shall I proceed for booking?

USER: You can proceed.

ASSISTANT: Your ticket is booked, flight number 1001.

USER: Thanks for your help.

ASSISTANT: Thank you for opting us.