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

ASSISTANT: Hello Andrew Nelson. How may I assist you today?

USER: I want to book a flight ticket to attend conference meeting at Houston, TX-HOU, so can you please help me to book a flight ticket from New York, NY-EWR?

ASSISTANT: Please share your journey dates?

USER: My journey dates are from 06/16 to 06/18.

ASSISTANT: Do you need any halt in between the journey?

USER: Yes, I need a halt in between my journey.

ASSISTANT: Thank you for your information. Unfortunately there are no flights found by the given details.

USER: That's not a problem. Thanks for your assistance.

ASSISTANT: Thank you for connecting us, have a good day.