You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: I have a business meeting in Oakland. Can you help me for booking a flight ticket from ORD to OAK?

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

USER: My travelling dates are July 23 and July 25.

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

USER: I prefer to book in economy class.

ASSISTANT: Let me know your connection limit.

USER: I need a single connecting flight.

ASSISTANT: Do you have any other requirements?

USER: My depart time is afternoon.

ASSISTANT: May I know your good name please?

USER: My name is Robert Thomas.

ASSISTANT: Ok, please wait a moment.

USER: Sure, I will wait for your response.

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

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for choosing us.