You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I guide you for today?

USER: Can you please help me for booking from OAK to LAS?

ASSISTANT: I am here to help you about that, can you please let me know your planned dates of journey?

USER: My trip dates are on July 01 and 03.

ASSISTANT: Do you have any limits on number of connections for this trip?

USER: I need a stopover.

ASSISTANT: Can you please let me know your name for booking purpose?

USER: Christine Walker here.

ASSISTANT: Do you have any other requirements for your journey to met with?

USER: I need a normal cost airline and make sure that my return time is morning.

ASSISTANT: Sorry Christine Walker, there are no flights which travels to your region on your planned dates of journey.

USER: Ok, thanks for your information.

ASSISTANT: You are welcome, thank you for reaching us.