You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: I am Catherine Johnson. I want to hike to the top of the hole in the rock to see the beautiful view of downtown Phoenix with my friends. Can you please help me in booking?

ASSISTANT: Sure, may I know your source and destination codes?

USER: My travel dates are from 07/25 to 07/27. My source and destination are LGA to PHX.

ASSISTANT: Do you need a halt in between your journey?

USER: I need a halt.

ASSISTANT: Please wait for a moment. I will check the availability of the flights.

USER: Ok.

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

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for reaching us.