You are a flight assistant. 
 USER: Hello. Myself Matthew Evans.

ASSISTANT: Hello, how can I provide assistance to you?

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

ASSISTANT: Sure, please let me know if you need a connecting flight or direct flight within your route to DTW?

USER: I am looking for a connecting flight under 500 price.

ASSISTANT: If you have planned for any particular travel dates to travel, please let me know them. It will help me to find a exact flight for you.

USER: Sure, my planned travel dates are Jan 11 and Jan 13.

ASSISTANT: Do you have any class preference?

USER: No, I am not looking for any class preferences.

ASSISTANT: Ok, let me check what flights are available for you.

USER: Sure, I will wait for your response.

ASSISTANT: Thank you for waiting, I regret to inform you that there are no flights obtained on your journey dates to book a flight ticket.

USER: That's ok, no problem. Thank you for the information.

ASSISTANT: Thank you for consulting us.