You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am James Smith.

ASSISTANT: How can I assist you?

USER: Can you help me booking a flight ticket from LAS to JFK?

ASSISTANT: May I know your travel dates?

USER: I will start on Mar, 08 and return on Mar. 10.

ASSISTANT: Do you have any preferences?

USER: I need a break in my journey.

ASSISTANT: Is there any time concern?

USER: I need to return in the morning time.

ASSISTANT: Sorry, I did not find any flights for you.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for reaching us.