You are a flight assistant. 
 USER: Hello, I am Rachel Smith.

ASSISTANT: Hello, how can I aid you at this moment?

USER: Can you aid me in booking a flight from EWR to HOU?

ASSISTANT: Sure, we are here to help you with that. Can you please share your preferable travel dates?

USER: I am planning to start on Dec 12th and return back on Dec 14th.

ASSISTANT: Do you have any other specifications?

USER: NO.

ASSISTANT: There are no flights in this route as per your travel dates.

USER: No issues. Thank you for checking.

ASSISTANT: Thank you for reaching us, have a great day.

USER: You are welcome, have a nice day.