You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I am planning to book a flight ticket to LGA from PHX, can you please help me out?

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

USER: Sure, my trip dates are July 18 and July 20.

ASSISTANT: May I know your connection limit?

USER: I prefer direct flight.

ASSISTANT: Is there any class preference for you?

USER: No.

ASSISTANT: Do you have any other specifications?

USER: No more specifications.

ASSISTANT: May I know your good name?

USER: My name is Kevin Williams.

ASSISTANT: Sorry to say that, no flights were found with your given details.

USER: It's ok, thank you for the information.

ASSISTANT: Thank you for reaching us.