You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: My name is Joshua Phillips. I need a connecting flight to Detroit, MI-DTW to visit all historic sites. Can you please make a reservation under the fare 200?

ASSISTANT: Sure, I will help you to book a flight ticket. May I know your source airport code?

USER: I want to fly from Charlotte, NC-CLT.

ASSISTANT: Please share me your travel dates?

USER: My travel period is 09/20 and 09/22.

ASSISTANT: Please wait for a while.

USER: Ok.

ASSISTANT: Thanks for waiting, sorry to inform you there is no any flight on your journey details.

USER: No problem, thank you for the information.

ASSISTANT: Thanks for connecting with us.