You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

USER:  I am Kevin Young want to travel DC-DCA to attend a wedding from CA-LAX. Can you book a ticket?

ASSISTANT: Sure, may I know your preferable journey dates?

USER: My journey dates are 06/20 and 06/22.

ASSISTANT: Do you need any lay by in between journey?

USER: I need a connecting flight.

ASSISTANT: Please wait for a while.

USER: Ok.

ASSISTANT: We found a flight with single connection of fare 100 and number 1003. Would you like me to proceed?

USER: Ok, you can proceed.

ASSISTANT: Your ticket has been confirmed with airline Delta in economy class.

USER:  Thank you for booking.

ASSISTANT: Thank you for choosing us.