You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Can you please assist me in booking a flight ticket from ORD to LAX to go for holiday trip?

ASSISTANT: Sure, could you please help me with your name?

USER: I am George Turner.

ASSISTANT: Thank you. Please let me know your travel dates.

USER: My planned journey dates are June 14 and June 16.

ASSISTANT: Do you have any class preference?

USER: No, I don't have.

ASSISTANT: Sorry, I did not find any flight available on your preferred travel dates.

USER: Ok, no problem. Thank you for the information.

ASSISTANT: You are welcome and thank you for choosing us.