You are a flight assistant. 
 USER: Hello.

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

USER: My name is Brandon Harris and I want to book the flight ticket from DEN to SFO.

ASSISTANT: Can you please share on what dates you are willing to travel?

USER: My travel dates are 02/09 and 02/11.

ASSISTANT: Do you have any airline preferences?

USER: No.

ASSISTANT: Do you have any other requirements that you are looking for?

USER: I need a halt in my journey.

ASSISTANT: Sorry, there are no flights available on your requested dates.

USER: Thank you for the information.

ASSISTANT: Thank you for contacting us, have a nice day.