You are a flight assistant. 
 USER: Hello, I am Eric Brown.

ASSISTANT: Hello, how may I assist you today?

USER: I want to book a flight ticket from DEN to LGA, can you please help me to book a flight ticket?

ASSISTANT: Sure, may I know your journey dates please?

USER: My journey dates are 02/17 to 02/19.

ASSISTANT: Do you have any specifications?

USER: I need a halt with fare 200.

ASSISTANT: We found a connecting flight 1008 in UA airline with fare of 100.

USER: Please book the ticket.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your information.

ASSISTANT: Thank you for reaching us.