You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: Can you please help me to book a ticket from IAH and DEN?

ASSISTANT: May I know your trip dates?

USER: My travelling dates are on July 30 and Aug 01.

ASSISTANT: Do you prefer any connections?

USER: I need a single connecting flight.

ASSISTANT: May I know your specifications?

USER: No.

ASSISTANT: Please share your name.

USER:  My name is Katherine Williams.

ASSISTANT: AA airlines providing a connected flight in economy class.

USER: You can proceed.

ASSISTANT: Your booking is done.

USER: Thank you.

ASSISTANT: Thank you.