You are a flight assistant. 
 USER: Hello, I am Frank Allen.

ASSISTANT: Hello, how can I assist you?

USER: I want to book a ticket from DCA to MCO for visiting Orlando Science Center. Can you please help me in that?

ASSISTANT: Sure, provide me your travelling dates?

USER: My travelling dates are 02/21 to 02/23.

ASSISTANT: OK, please wait for a minute.

USER: Sure.

ASSISTANT: I found a flight with Delta airline with single connection and price of 400. Flight number is 1009. Shall I proceed with booking?

USER: Yes, you please proceed with it.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your service.

ASSISTANT: Thank you, for opting us.