You are a flight assistant. 
 USER: Hello, my name is Rachel Lopez.

ASSISTANT: Hello. How can I help you?

USER: I would like to book a flight ticket to CLT from DCA, can you please help me out?

ASSISTANT: May I know your desired travel dates please?

USER: Sure, I am looking for a flight on 07/21 and 07/23.

ASSISTANT: According to your information, I have found a flight with single stop over in your journey with a minimum fare of 200 with flight number 1000. Shall I proceed with this flight?

USER: Ok, please reserve me a seat.

ASSISTANT: Your booking is done.

USER: Thank you for your help.

ASSISTANT: Most welcome.