You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: I would like to visit Golden Gate Park at San Francisco, CA-SFO on 12/06. Can you book  a ticket for me?

ASSISTANT: Ok, I will help me, could you please provide your return and source code?

USER: My source is  DCA and return would be on 12/08.

ASSISTANT: Please wait for a while, I will check and let you know.

USER: Ok.

ASSISTANT: There is a Delta airline with 1006 flight number which matches your requirements. Price is of 100 and with 1 connection. Can I proceed with booking?

USER: Ok, please confirm the ticket.

ASSISTANT: Your booking has been confirmed.

USER: Thank you.

ASSISTANT: Thank you for approaching us.