You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Laura Hernandez. I am planning to book a ticket from LAS to BOS. Can you please help me out?

ASSISTANT: Sure, we are pleased to serve you. Can you share me your trip dates?

USER: I am planning to travel on July 17 and return back on July 19.

ASSISTANT: Is there any class preference for you?

USER: No.

ASSISTANT: Would you like to prefer direct flight or connecting flight?

USER: I am looking for a connecting flight.

ASSISTANT: Do you have any other requirements?

USER: My return time should be afternoon.

ASSISTANT: Please stand by.

USER: Sure.

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

USER: That's fine, thank you for your service.

ASSISTANT: Thank you for opting us.