You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: My name is Angela Williams. I am planning to visit a Fisher Building in Detroit, so please book a direct flight for me.

ASSISTANT: Sure, Can you please share your airport codes?

USER: My source is Boston, MA - BOS, destination airport code is MI - DTW.

ASSISTANT: When would you like to travel?

USER: I will start on 03/24, return on 03/26.

ASSISTANT: Thanks for providing your information. Unfortunately there are no flights found with your details.

USER: No problem, thank you for your service.

ASSISTANT: Thank you for connecting with us.