You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: Please help me out in booking the ticket from JFK to DFW.

ASSISTANT: Sure, I will help you with that. On which dates would you like me to book a flight ticket for you?

USER: My trip dates will be Apr 15 to Apr 17.

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

USER: Economy is my class preference.

ASSISTANT: Let me know your connection limit.

USER: I want a direct limit.

ASSISTANT: Will you be comfortable in a low cost airline or you need a normal cost airline?

USER: Normal cost is my airline preference.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: May I know your good name please?

USER: Jason Brown here.

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

USER: That's ok, thank you.

ASSISTANT: Thank you for choosing us.