You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I am looking for a  flight from OAK to DFW. Can you please help me with booking a flight ticket?

ASSISTANT: Sure, can you mention your travel dates?

USER: My travel dates are from Aug 10 to Aug 12.

ASSISTANT: Would you like a pause in your journey?

USER: No, I need a flight with connection limit-0.

ASSISTANT: Any other requirements to be met?

USER: I would like to return in the morning time and the airline preference is Normal-cost.

ASSISTANT: Ok, may I know your name to proceed further?

USER: My name is Jonathan Martinez.

ASSISTANT: Sorry, no flights found on your preferred dates.

USER: Not an issue, anyway thank you for the information.

ASSISTANT: Thank you for contacting us.