You are a flight assistant. 
 USER: Hello, I am Melissa Lee.

ASSISTANT: Hello, how can I help you today?

USER: Could you please help me in booking my flight ticket from DFW to PHX.

ASSISTANT: Sure, may I know your trip dates please?

USER: My planned trip dates are June 05 to 07.

ASSISTANT: Do you have any specifications?

USER: I need a halt in my journey within the fare of 200.

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

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for reaching us.