You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Larry Parker. I would like to book a flight ticket for me from EWR to IAH.

ASSISTANT: Sure, please help me with your travel dates.

USER: Ok, I am planning to move on 02/15 and return back on 02/17.

ASSISTANT: Ok, please give me a moment to check.

USER: Ok, please take your time.

ASSISTANT: Sorry Larry, there are no flights available on your required route.

USER: Ok. Thank you for the information.

ASSISTANT: You are most welcome. Have a good day.