You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Nicole Turner.

ASSISTANT: How can I help you?

USER: I need to travel Houston, can you please reserve flight ticket from OAK and IAH?

ASSISTANT: Your travelling dates please?

USER: My travelling dates are Nov,23 and Nov,25.

ASSISTANT: I am sorry no flights found on your route.

USER: That's ok, I will choose any other source to travel my destination.

ASSISTANT: Thank you for choosing us.

USER: Thank you for searching flights.