You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I want to book a flight ticket from OAK to HOU for attending a event.

ASSISTANT: Sure, can I know your travelling dates?

USER: My travelling dates are Dec 6 and Dec 8.

ASSISTANT: On which name should I reserve the flight ticket?

USER: I am Lisa Rodriguez.

ASSISTANT: Do you have any connection limit?

USER: I prefer to travel in a connecting flight.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Sorry, there are no flights found on given dates.

USER: No worries, thank you for the information.

ASSISTANT: Thank you for reaching us.