You are a flight assistant. 
 USER: Hi. Donald Lee here.

ASSISTANT: Hello, how may I help you?

USER: Please help me out in booking the ticket from OAK to MCO.

ASSISTANT: Sure, I am here to help. May I know when are you planning your trip to Orlando?

USER: My trip dates will be 09/23 to 09/25,.

ASSISTANT: Do you have any other preference to add to your flight search?

USER: I need a halt in between the journey.

ASSISTANT: Sure, please wait for a while.

USER: Ok.

ASSISTANT: Sorry to inform you that there is no flight available for your journey.

USER: That's ok. Thank you.

ASSISTANT: Thank you.