You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Jeffrey Martin and I want to book the flight ticket from PHL to DFW.

ASSISTANT: Sure, I will help you. Please let me know with your planned travel dates.

USER: My travel dates are 05/08 and 05/10.

ASSISTANT: Jeffrey Martin, do you need a direct or connecting flight?

USER: I need a halt in my journey.

ASSISTANT: Please let me know if you have any other preferences in your journey.

USER: My depart  time should me in the evening.

ASSISTANT: I am sorry to inform you that there no active flights as per your request.

USER: Ok, thank you for the information.

ASSISTANT: Thank you for reaching us. Have a great time.