You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you today?

USER: I would like to book a ticket from DEN to DCA.

ASSISTANT: Sure, can you share me your trip dates?

USER: Departure is by Aug, 30 and return date is Sept, 1.

ASSISTANT: Do you have any specifications?

USER: I prefer economy class.

ASSISTANT: Can I know your good name?

USER: My name is Gary Adams.

ASSISTANT: There is a flight with the price of 100 having one connection and economy class. Can I proceed to booking?

USER: Please book a flight.

ASSISTANT: Your ticket has been reserved with the flight- 1018.

USER: Thank you.

ASSISTANT: Thank you for opting us.