You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I amend you?

USER: I am Carol Parker. I would like to visit Chatfield State Park at Denver, DEN.

ASSISTANT: Ok.

USER: Can you please book a ticket with connecting flight?

ASSISTANT: Sure, I am ravish to help you.

USER: Thank you.

ASSISTANT: Can I have your source airport code?

USER: My source point is Washington, DCA.

ASSISTANT: May I know when do you want to travel?

USER: My journey start on 09/07 and need to catch return flight on 09/09.

ASSISTANT: Please, wait for a while.

USER: Sure.

ASSISTANT: Thank you for being patience, there is a flight available with SouthWest airline, flight number 1001 with fare 100 and a lay by.

USER: Ok. confirm my ticket.

ASSISTANT: Your booking has been confirmed.

USER: Thanks for your help.

ASSISTANT: Thank you for contacting us.