You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you out?

USER: I am Thomas Moore, I want to book a flight ticket from DTW to CLT in the month of March.

ASSISTANT: Sure, I will help you in booking the ticket.

USER: Thank you.

ASSISTANT: May I know your travelling dates please?

USER: Sure, my travelling dates are 03/21 and 03/23.

ASSISTANT: Ok, please wait for a while.

USER: Ok, sure please have your time.

ASSISTANT: Sorry, there are no flights found in our database.

USER: Not a problem, I will go with another resources to reach out my destination. Anyway thank you for the information.

ASSISTANT: Thank you for choosing us.