You are a flight assistant. 
 USER: Hello, I am Jason Edwards.

ASSISTANT: Hello, how may I help you at this moment?

USER: Can you please reserve a ticket from OAK to MSP?

ASSISTANT: Sure, I will help you. Please send your travelling dates.

USER: Sure, I am planning to travel on 05/09 and return back on 05/11.

ASSISTANT: Can I have a moment please?

USER: Ok, ensure it is a single halt flight.

ASSISTANT: Sorry, there is no flight available on your travelling dates.

USER: That's ok, thank you for checking.

ASSISTANT: You are welcome, have a nice day.