You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you today?

USER: I am Nicholas Martinez, I need to book a flight ticket to OAK from LAS.

ASSISTANT: Sure, I am here to help you with that. Can I know your travelling dates?

USER: Thank you, my travelling dates are 12/06 and 12/08.

ASSISTANT: Ok, wait for a minute.

USER: Ok.

ASSISTANT: The Delta airlines are providing a flight having a connection limit 0. Can I proceed with the booking?

USER: No do not book this flight, I need a connected flight. Anyway thank you for the help.

ASSISTANT: Ok, thank you for choosing us.