You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Can you reserve me a ticket from DCA to MSP?

ASSISTANT: Can I know your trip dates?

USER: My journey dates are July 07 to 09.

ASSISTANT: May I know your name?

USER: Charles Adams here.

ASSISTANT: Do you have any other specifications?

USER: I need a single connecting flight.

ASSISTANT: There is a flight of Delta airline, flight number 1004 with the fare of 1400.

USER: Ok, please proceed with booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for choosing us.