You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I am Benjamin Hernandez. Can you please help me in booking my flight ticket from IAH to DTW?

ASSISTANT: Sure, I am here to help you out. Please provide me your trip dates.

USER: My trip dates are 03/08 and 03/10.

ASSISTANT: Sorry  Benjamin Hernandez, there is no flight in your route with your trip dates.

USER: Ok, fine thank you for checking.

ASSISTANT: Thank you for reaching us.