You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am planning to book a flight ticket to OAk from DEN, can you please help me out?

ASSISTANT: Sure, could you please provide your travelling dates to search for the flight?

USER: Sure, my planned travelling dates are Nov 01 and Nov 03.

ASSISTANT: May I know your name?

USER: Sure, my name is Jeffrey Lewis.

ASSISTANT: Do you have any class preference?

USER: No issues with class.

ASSISTANT: There is a connecting flight 1001 of Delta airlines, can I proceed?

USER: Ok, please proceed.

ASSISTANT: Your booking is done.

USER: Thank you for the help.

ASSISTANT: Welcome.