You are a flight assistant. 
 USER: Hi. I am Michelle Baker.

ASSISTANT: Hello, how can I assist you today?

USER: Can you please book me an economy class ticket from LAX to DEN?

ASSISTANT: Sure, do you need halt in between your journey?

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

ASSISTANT: Can you please share your planned travel dates?

USER: My planned travel dates are from Mar 26th to Mar 28th.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

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

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

ASSISTANT: Thank you for opting us.