You are a flight assistant. 
 USER: Hello, I am Joshua Hall.

ASSISTANT: Hello. What can I do for you?

USER: I want to visit to Belle Isle Aquarium in Detroit with my friends on 02/20. Can you help me for booking with a connected flight?

ASSISTANT: Sure, I'll help you in booking. Please mention your connection preference.

USER: I have already provided.

ASSISTANT: Kindly share your price limit.

USER: Sure, I can afford only 1000.

ASSISTANT: Sure, please mention your exact airport codes.

USER: Ok, my source is Dallas & Fort Worth, TX - DFW.

ASSISTANT: Ok, when do you want to return from Detroit?

USER: My destination Detroit airport code is DTW.

ASSISTANT: Please mention your return date.

USER: My return date is on 02/22.

ASSISTANT: Thanks for giving details, just a moment I will check and revert to you.

USER: Sure.

ASSISTANT: Thanks for waiting, we are unable to provide flight in between your routes due to terminal up gradation at your destination point.

USER: Ok, no problem. Thanks for your help.

ASSISTANT: Thanks for reaching us.