You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

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

ASSISTANT: May I know your travel dates?

USER: My trip dates are 29 to 31 of Aug.

ASSISTANT: Do you have any connecting flight preferences?

USER: I want a connecting flight.

ASSISTANT: Delta Airlines is providing the connecting flight and the fare of 100. Shall I proceed?

USER: Please proceed.

ASSISTANT: May I know your name to proceed further?

USER: I am Patricia Davis.

ASSISTANT: Your reservation is confirmed for the flight 1002.

USER: Thanks for helping me.

ASSISTANT: Thank you for choosing us.