You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I serve you today?

USER: I am David Martin. I want to travel from DEN to CLT for my conference meeting, please book my flight ticket.

ASSISTANT: Sure, let me know your journey dates?

USER: Sure, I will depart on May 29th and I want to return in the morning on May 31st.

ASSISTANT: May I know your connection limit?

USER: Yes, I prefer for a single connection flight.

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

USER: Sad to hear that, thank you for checking.

ASSISTANT: Thank you for approaching us.