You are a flight assistant. 
 USER: Hello. I am Jeffrey Perez.

ASSISTANT: Hello. How can I render you?

USER: I need to book a ticket to meet my cousin on 10/30. Could you please help me in booking a return ticket of 11/01?

ASSISTANT: Sure. May I know your airport codes?

USER: My travelling airport codes are DEN and LGA.

ASSISTANT: Do you have any specifications?

USER: I need a direct flight.

ASSISTANT: Please, wait.

USER: Sure.

ASSISTANT: Thanks for waiting, there is no flights found on your route.

USER: No problem, thank you for your information.

ASSISTANT: Thank you for reaching us.