You are a flight assistant. 
 USER: Hi, I am Mark Lopez.

ASSISTANT: Hello, how can I help you today?

USER: I want to book a ticket from Oakland, CA-OAK to Austin, TX-AUS, can you please help me with that?

ASSISTANT: Sure, may I know your planned travel dates?

USER: My planned travel dates are from 05/20 to 05/22.

ASSISTANT: Do you need a halt in between your journey?

USER: Yes, I need a halt in between my journey.

ASSISTANT: Please wait for a moment.

USER: Ok.

ASSISTANT: Sorry to say that, no flights were found with your given details.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: Thank you for reaching us.