You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Frank Edwards here.

ASSISTANT: How can I aid you at this moment?

USER: Please help me out in booking the ticket from EWR to BOS.

ASSISTANT: Sure, I am happy to aid you in booking flight ticket. Can you please mention your preferable travel dates?

USER: My trip dates will be 12/15 to 12/17.

ASSISTANT: Please hold on a moment, I will check flight availability in this route as per your requested dates.

USER: Ok.

ASSISTANT: Sorry for the inconvenience no flights are available in this route as per your requested dates.

USER: That's ok, no problem. Thank you for informing.

ASSISTANT: Thank you for reaching us.