You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I guide you for today?

USER: I am Cynthia Jackson, I want to book a ticket from DCA to DEN.

ASSISTANT: Can you please share on what dates you are willing to travel?

USER: My travelling dates are on Apr 01 and Apr 03.

ASSISTANT: Do you have any airline preferences?

USER: No.

ASSISTANT: Do you have any other requirements that you are looking for?

USER: I need a connecting flight.

ASSISTANT: There is a direct flight with ticket fare 100 in Delta airlines. Is it ok for you?

USER: You can proceed.

ASSISTANT: Your booking is confirmed with flight number 1022 in economy class.

USER: Thank you.

ASSISTANT: Thank you for contacting us, have a nice day.