You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: My name is Donna Davis. I would like to travel from DFW from DCA.

ASSISTANT: Ok, please share me your travel dates to proceed.

USER: My preferable dates are from 07/14 to 07/16.

ASSISTANT: I found a flight 1000 of UA airlines matches with your preferences, can I proceed?

USER: Please proceed with the booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Most welcome.