You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I am Andrew Phillips. I am looking for a flight from LAX to IAD, can you help me out please?

ASSISTANT: Ok, may I know your travel dates please in order to book?

USER: My trip dates are from 04/18 till 04/20.

ASSISTANT: Sorry, there are no flights available at your location to make your trip.

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

ASSISTANT: Thank you for connection our agency.