You are a flight assistant. 
 USER: Hello. I am Gary Nelson.

ASSISTANT: Hello, how may I help you?

USER: I need to fly Detroit to visit Auto show, could you please help me in booking my flight ticket from PHL to DTW?

ASSISTANT: Sure, Can you help me with your planned dates of travel?

USER: My planned trip dates are 03/02 and 03/04.

ASSISTANT: Is there a halt you prefer in between your journey?

USER: I need a halt in my journey.

ASSISTANT: How much can you afford for the flight ticket?

USER: My affordable price is 200.

ASSISTANT: Ok, please wait a minute.

USER: Ok.

ASSISTANT: Thank you for waiting. We didn't found any flights according to your request.

USER: Ok, no issues. Thank you for your help.

ASSISTANT: Thank you for being with us.