You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you at this moment?

USER: Amanda Scott here. Could you please book me a ticket from  BOS to OAK.

ASSISTANT: Sure, I am happy to aid you in booking flight ticket. Could you please let me know your preferable travel dates for booking flight ticket?

USER: Sure, my trip dates are 09/09 and 09/11.

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

USER: Sure.

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

USER: Ok, no issues. Thank you for your information.

ASSISTANT: Than you for reaching us, have a nice day Amanda Scott.