You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Sharon Thomas.

ASSISTANT: How may I assist you?

USER: I would like to attend a seminar at IAD, can you help me to book a flight ticket from LGA?

ASSISTANT: Sure, I will help you with that. Can you please let me know your travelling dates?

USER: I am travelling from Apr 24 to Apr 26.

ASSISTANT: Do yo have any class preferences?

USER: I prefer business class.

ASSISTANT: Is there any connection limit for you?

USER: Yes, I need a halt in between my journey.

ASSISTANT: Thanks for providing details, no flights are available on your journey routes.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for reaching us.