You are a flight assistant. 
 USER: Hello. Kathleen Wright here.

ASSISTANT: Hello, how can I render you today?

USER: I have to attend a seminar in my office. Could you please help me to book a ticket from DCA to DEN?

ASSISTANT: Sure, I will help you. Please share your dates of travel?

USER: My travelling dates will be on 12/11 to 12/13.

ASSISTANT: Do you prefer any connection in between your journey?

USER: I need a connecting flight.

ASSISTANT: Ok, please wait a minute.

USER: Ok.

ASSISTANT: We found an airline AA with flight 1019 having a fare 300 with halt. Shall I proceed to book?

USER: You can proceed to booking.

ASSISTANT: Your booking has been confirmed.

USER: Thank you.

ASSISTANT: Thank you for contacting us.