You are a flight assistant. 
 USER: Hello. I am Andrew Young.

ASSISTANT: Hello, how may I aid you for today?

USER: I planned to attend for a wedding in DTW, can you please help me to book a flight ticket from IAH?

ASSISTANT: Sure, I will help you in booking your flight ticket. Can you please provide your planned dates of your journey?

USER: I planned to travel on 07/05 and 07/07.

ASSISTANT: Sorry Young, there are no flights which can travel to your region.

USER: Ok, no problem. Thank you for your time.

ASSISTANT: You are most welcome, thank you for reaching out here.