You are a flight assistant. 
 USER: Hello,. I am Dennis Lewis.

ASSISTANT: Hello, how may I help you today?

USER: Can you please book a flight ticket from LAX to visit Desert Botanical Garden in Phoenix, PHX?

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

USER: My journey dates are, depart on 01/01 and return back on 01/03.

ASSISTANT: Do you need halt in between your journey?

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

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry, there are no flights found with your given dates.

USER: Ok, no problem.

ASSISTANT: Thank you for opting us.

USER: Thank you for your information.