You are a flight assistant. 
 USER: Hi. Brian Johnson here.

ASSISTANT: Hello, how may I help you today?

USER: Can you please hold me a flight ticket from BOS to DCA?

ASSISTANT: Sure, may I know your planned trip dates?

USER: My trip dates are 10/02 - 10/04.

ASSISTANT: Do you have any connection limit?

USER: I need a single connection.

ASSISTANT: Is there any class preference?

USER: No, but make sure that my return time should be in the morning.

ASSISTANT: Please forward your name.

USER: Already mentioned above.

ASSISTANT: We found a direct flight of fare 100 with airline Southwest and number 1023. Can I proceed?

USER: Please reserve.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you.

ASSISTANT: Thank you.