You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Ruth Walker here.

ASSISTANT: How may I assist you?

USER: I am planning to visit Denver for a business meeting, can you please reserve a flight ticket from DTW to DEN?

ASSISTANT: Sure, can I know your journey dates?

USER: I would like to departure on Mar 27 and please book my return ticket also on Mar 29.

ASSISTANT: Is there any other preferences that you need?

USER: I would like to departure at afternoon time.

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

USER: Oh! Sad to hear that. Anyway, thank you for the information.

ASSISTANT: You are most welcome and have a nice day.

USER: Welcome.