You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I am Edward Gonzalez. I want to book a flight ticket to visit Washington to meet my father who works at Washington University. Help me to book a flight.

ASSISTANT: Ok, provide me your journey dates?

USER: 08/14 and 08/16 are my travel dates.

ASSISTANT: Do you have any preferences? Please provide me your journey points?

USER: I need single halt in between. Journey points are OAK and DCA.

ASSISTANT: We found a connecting flight Spirit with flight number 1007 and fare is 100.

USER: Proceed.

ASSISTANT: Your booking is done.

USER: Thank you.

ASSISTANT: Thank you for availing us.