You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Laura Phillips.

ASSISTANT: Welcome to flight booking agency, what type of help that you are requesting from my side?

USER: I would like to attend an event in LAX, can you help me in booking the flight from IAD?

ASSISTANT: Sure, I will help you in that. May I know your journey dates?

USER: My probable travel dates are from 08/11 till 08/13.

ASSISTANT: Please wait for a while to search for the flight on your travel dates.

USER: Sure, take your time.

ASSISTANT: Is there any halt that you need in your trip?

USER: Yes, I need it in my trip.

ASSISTANT: No flights are there for you to book the flight ticket on your trip dates and location.

USER: That's ok, no problem. Thank you for your information.

ASSISTANT: You are welcome and have a nice day.