You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: Richard Moore here.

ASSISTANT: Glad to meet you Moore. How can I help you?

USER: Can you please book a flight from DEN to LGA to attend a conference?

ASSISTANT: Sure, I am here to help you. May I know your travel dates please?

USER: Sure, my itinerary dates are from 07/28 to 07/30.

ASSISTANT: Ok, hold on for a moment. Let me check the best flight for you.

USER: Sure, take your time.

ASSISTANT: I found a flight for you with UA airline and it costs you 200. Shall I proceed?

USER: Please book my ticket.

ASSISTANT: Your ticket has been booked with 1008 flight number.

USER: Thank you so much for your help.

ASSISTANT: Welcome. Thank you for reaching us. Have a safe flight.