You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello. How can I assist you?

USER: I am Stephanie Moore.

ASSISTANT: Ok.

USER: I need to book my flight ticket to Washington, DCA to visit National air and space museum. Will you be in booking me a flight ticket on 02/23?

ASSISTANT: Sure, I can help you with this booking a flight ticket.

USER: Thank you.

ASSISTANT: Please share me your source airport code.

USER: Chicago, ORD is my source airport.

ASSISTANT: When would you like to return?

USER: I will return on 02/25.

ASSISTANT: Please wait a while.

USER: Sure.

ASSISTANT: We found a Delta airline, flight number:1016 and the price is 100. Can I proceed it for booking?

USER: Proceed with my booking.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you for your service.

ASSISTANT: Thank you for contating us.