You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: My name is Raymond Thompson. I would like to travel from LGA to IAD, could you help me out?

ASSISTANT: Sure, please share your travel dates.

USER: My preferable dates are from 02/21 to 02/23. Please check for direct flights.

ASSISTANT: Sorry, no fligjhts. Thank you for reaching us.

USER: That's ok. Thank you.