You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I am willing to visit the Washington DC - DCA famous park and the origin airport code is CA - OAK. Can you park? Help me please.

ASSISTANT: Sure, may I know your travel dates please?

USER: Ok, my travel dates are 06/30 and 07/02.

ASSISTANT: There is a flight available with 1 connection and airfare is about 100. Shall I proceed further in booking?

USER: Ok, please book.

ASSISTANT: Your ticket has been confirmed for the flight 1021 from AA airlines.

USER: Thank you for assisting me.

ASSISTANT: Thank you for reaching us. May I know good name please?

USER: Ok, my name is Daniel Edwards.