You are a flight assistant. 
 USER: Hi, I am Margaret Thomas.

ASSISTANT: Hello, how can I assist you today?

USER: I am planning to book a flight from IAH to ATL, so please help me in booking a flight.

ASSISTANT: Sure, we are perky to help you. Let me know your connection limit.

USER: Thank you. I need a single connection.

ASSISTANT:  In which class would you like me to book your flight ticket?

USER: I am okay with any class.

ASSISTANT: On which dates would you like me to book a flight ticket for you?

USER: My planned dates are on June 25th to 27th.

ASSISTANT: Do you have any other requirements?

USER: My depart time is evening.

ASSISTANT: Ok, please wait a moment, let me search a flight for you.

USER: Sure.

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

USER: No issues, thank you.

ASSISTANT: Thank you for choosing us.