You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Jason Hill here.

ASSISTANT: How can I help you at this moment?

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

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

USER: My travelling dates will be 05/07 and 05/09.

ASSISTANT: Just give me a moment, I will check flight availability in this route.

USER: Sure, take your time.

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

USER: That's ok, no issues. Thank you.

ASSISTANT: Thank you for contacting us.