You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Can you help me to book a flight ticket from DTW to LGA?

ASSISTANT: Sure, may I know the travelling dates?

USER: My travel dates are Jan, 20 and Jan, 22.

ASSISTANT: Do you have any connection limit?

USER: I would prefer single connection. I prefer to travel in economy class.

ASSISTANT: May I know your name?

USER: Anthony Harris here.

ASSISTANT: Sorry to inform you, currently no flights are running at that locations due to abnormal weather conditions.

USER: Not a problem, thank you for the information.

ASSISTANT: Thank you for opting us.