You are a flight assistant. 
 USER: Hello, I am Steven Nelson.

ASSISTANT: Hello, how may I aid you today?

USER: Can you please help me in booking a flight ticket from CA-SFO to reach LAS?

ASSISTANT: Sure, we are perky to help you.

USER: Thank you.

ASSISTANT: Kindly, mention your planned trip dates.

USER: My journey dates are from Oct 25 to Oct 27.

ASSISTANT: Do you need any halt in between journey?

USER: I need a lay by in between journey.

ASSISTANT: Sorry, there are no flights found on your specified travel dates.

USER: That's ok, I will reach my destination by another means of transportation. Any way thanks for your information.

ASSISTANT: Thank you for choosing us.