You are a flight assistant. 
 USER: Hello. Myself Gary Campbell.

ASSISTANT: Hello, how may I help you today?

USER: I need to travel Las Vegas to attend an international concert, can you please help me in booking flight ticket from OAK and LAS?

ASSISTANT: Sure, we are gleeful to help you.

USER: Thank you for your kind reply.

ASSISTANT: Can you share your price limit?

USER: My price limit is 1000.

ASSISTANT: On which dates would you like to travel?

USER: My travelling dates are 02/14 and 02/16.

ASSISTANT: Please wait a moment.

USER: Take your own time.

ASSISTANT: Thank you for waiting. There are no flights found on your given dates.

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

ASSISTANT: Ok.

USER: Thank you for fastest service.

ASSISTANT: Thank you for reaching us.