You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello.

USER: I am Thomas Lewis.

ASSISTANT: How may I assist you?

USER: I am planning to visit Sound board theater in Detroit, MI - DTW. Can you help me to book a connecting flight?

ASSISTANT: Sure, I am here to help you out. May I know your travelling dates please?

USER: My travel dates are 12/19 and recur on 12/21.

ASSISTANT: May I know your airport codes please?

USER: My source is from Atlanta, GA - ATL.

ASSISTANT: Wait a moment please.

USER: Sure.

ASSISTANT: Thomas Lewis, there are no flights available in your route.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for your help.