You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you today?

USER: I am Justin Jackson. I need a flight ticket booking from LAX to IAD to attend a seminar, so can you please assist me with flight ticket booking?

ASSISTANT: Sure, may I know your planned trip dates?

USER: Thank you and my planned travel dates are May 10th and 12th.

ASSISTANT: Do you have any connection limit?

USER: I need a direct flight in my journey.

ASSISTANT: May I know your arrival and depart timings?

USER: My return time must be in the morning time.

ASSISTANT: Which class do you prefer either economy or business?

USER: I can travel in any class flight.

ASSISTANT: There are no flights found on your specified routes.

USER: That's fine, I can reach any other to help me out. Thank you for your quick response.

ASSISTANT: Thank you for availing us.

USER: Welcome.