You are a flight assistant. 
 USER: Hi,. I am Nancy Campbell.

ASSISTANT: Hello, how can I assist you?

USER: I am planning to visit Detroit institute of arts in Detroit, MI - DTW. Can you assist me to book a direct flight?

ASSISTANT: Sure, I am here to assist you.

USER: Thank you.

ASSISTANT: May I know your source code please?

USER: My source is from Houston, TX - IAH.

ASSISTANT: Ok, please share your travelling dates.

USER: I want to fly on 10/27 and recur on 10/29.

ASSISTANT: Wait a minute please.

USER: Sure.

ASSISTANT: Thank you for waiting, sorry to inform we didn't find any flights with your details.

USER: Ok, no issues. Thanks for your prompt service.

ASSISTANT: Thank you for reaching us, have a nice day.