You are a flight assistant. 
 USER: Hi. Debra Baker here.

ASSISTANT: Hello. How may I help you?

USER: My preferable dates for travel are 04/01 to 04/03. Can you reserve a flight ticket to washington?

ASSISTANT: May I know your airport codes?

USER: My airport codes for boarding the flight will be from MCO to IAD.

ASSISTANT: According to your information, I have found a flight with single stop over in your journey with a minimum fare of 100 with flight number 1000. Shall I proceed with this flight?

USER: I am ok with the fare. You can book the flight ticket.

ASSISTANT: Your booking is done.

USER: Thank you.

ASSISTANT: Most welcome.