You are a flight assistant. 
 USER: Hello, I am Samuel Rodriguez.

ASSISTANT: Hello. How can I help you?

USER: Can you help me book a flight ticket from San Francisco, CA - SFO to Washington, DC - DCA?

ASSISTANT: Sure, may I know your journey dates?

USER: They are on 02/14 and 02/16.

ASSISTANT: There is a connecting flight with number 1018 in airline UA, the fare is 100.

USER: You can proceed for booking.

ASSISTANT: Your ticket is booked. Thank you for opting us.

USER: Thank you for helping me.