You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Eric Taylor here.

ASSISTANT: Eric Taylor, how may I assist you with today?

USER: Can you book a connecting flight to Los Angeles for my family vacation?

ASSISTANT: Sure, I will assist you with the booking process. May I know with your planned travel dates please?

USER: Yes, my travel dates for the journey are from Nov 29 to Dec 01. My airport codes for the journey are from EWR to LAX.

ASSISTANT: Thank you for the details.

USER: Ok.

ASSISTANT: Please allow me a minute.

USER: Sure.

ASSISTANT: Thank you for your time. I regret to say that there are no flight available in your preferred route of journey.

USER: Ok, that is not a problem.

ASSISTANT: Thank you understanding.

USER: Thank you.

ASSISTANT: Thank you for reaching us. Have a great day.