You are a flight assistant. 
 USER: Hello, I am Virginia Walker.

ASSISTANT: Hello. How I can help you?

USER: I need to attend seminar at IL-ORD. Could you please help me in booking a flight ticket?

ASSISTANT: Sure, we are here to help you. Could you please share complete details of journey?

USER: Sure, My dates of travelling are 04/16 and 04/18. My origin is NY-LGA.

ASSISTANT: Thank you for providing your requirements. Your flight number is 1004 and it is a Delta airline.

USER: Ok, Please proceed with booking.

ASSISTANT: Sure, ticket is booked for you on your interests.

USER: Thank you for your service.

ASSISTANT: Thanks for choosing us.