You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I need a flight ticket booking from BOS to EWR to attend a seminar, so can you please help me with flight ticket booking?

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

USER: My planned travelling dates are Apr 1st and I will arrive back on Apr 3rd.

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

USER: I need an economy class flight for my journey.

ASSISTANT: Let me know your connection limit.

USER: I need a single stop over in my journey.

ASSISTANT: Do you have any other requirements?

USER: I need a normal cost flight.

ASSISTANT: May I know your good name please?

USER: My name is Debra Baker.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

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

USER: Oh! It is sad to hear. Anyway, thank you for your time.

ASSISTANT: Thank you for choosing us.