You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you at this moment?

USER: I am Anthony Phillips.

ASSISTANT: Welcome to flight booking agency Anthony.

USER: I am looking for a flight from HOU to DTW, can you help me in booking the flight ticket?

ASSISTANT: Sure, I will help you with that. Can you please provide your planned dates of travelling?

USER: My travelling dates are from 05/04 till 05/06.

ASSISTANT: Please wait a moment to check the flights on your route.

USER: Ok.

ASSISTANT: We regret to inform you that there are no flights moving to your region with your planned dates of travelling.

USER: Thank you, no problem. Thank you for your help.

ASSISTANT: Thank you for reaching us, have a great day.