You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you today?

USER: I am Dorothy Brown. Can you please aid me for booking from OAK to DEN?

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

USER: Sure, my travelling dates are 13 and 15 on the month of May.

ASSISTANT: Do you have any other specifications?

USER: My return time is evening.

ASSISTANT: Do you have any other requirements?

USER: I need a connected flight.

ASSISTANT: Ok, please wait for a minute.

USER: Sure.

ASSISTANT: Sorry to say that, there are no flight's available based on your connection limit.

USER: That's Ok, thanks for your help.

ASSISTANT: Thank you for reaching us.