You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I support you?

USER: My name is Betty Evans. Please help me to book a flight ticket from BOS to ORD.

ASSISTANT: Sure, I am here to help you. May I know your itinerary dates?

USER: My journey dates are from Aug, 04 to Aug, 06.

ASSISTANT: Is there any class preference for you?

USER: I need an economy class to fly.

ASSISTANT: Do you have any specific timings to depart and arrive?

USER: I need to return in the evening.

ASSISTANT: Do you have any other specifications?

USER: I need a single connecting flight and I need normal-cost airline to fly.

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

USER: Nothing to worry, thanks for your information.

ASSISTANT: Thank you for opting us.