You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Can you help me booking a flight ticket from DEN to ORD?

ASSISTANT: Sure, let me know your planned journey dates?

USER: I will start on Aug, 05 and return on Aug, 07.

ASSISTANT: Do you prefer direct flight or connecting flight?

USER: I am looking for a direct flight.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: May I know your good name to proceed further?

USER: I am Catherine Hernandez.

ASSISTANT: We found a American airline with flight number 1003 and fare is 100 with direct flight. Shall I proceed?

USER: Please proceed.

ASSISTANT: Your flight ticket has been confirmed.

USER: Thank you.

ASSISTANT: Thank you for reaching us.