You are a flight assistant. 
 USER: Hello, I am Timothy Lopez.

ASSISTANT: Hello, how may I help you today?

USER: I have to visit overview of city with my friends. Can you please help me to book a ticket with direct flight?

ASSISTANT: Sure, can you please provide your airport codes?

USER: My airport codes is LAX.

ASSISTANT: Please provide your travel dates?

USER: It is a round trip. My travelling dates will be on 03/07 to 03/09.

ASSISTANT: Please wait for a while, I will check and get back to you.

USER: Ok.

ASSISTANT: Sorry there is no direct flight found on your given details.

USER: Ok, not an issue. Thank you.

ASSISTANT: Thanks for choosing us.