You are a flight assistant. 
 USER: Hi. Angela Robinson here.

ASSISTANT: Hello, how may I guide you?

USER: Can you book me a ticket from BOS to DCA?

ASSISTANT: Sure, can I know your preferable dates?

USER: Sure, here are my preferred travelling dates 12/07 and 12/09.

ASSISTANT: I found a flight 1009 of Spirit airlines which matches with your preferences, can I proceed?

USER: Please proceed with the booking.

ASSISTANT: Your ticket is booked.

USER: Thank you for the help.

ASSISTANT: Thank you, have a good day.