You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. In which way I can aid you today?

USER: I am loco pilot and I have to attend a marriage concern in Philadelphia, so please book a flight ticket for me from BOS to PHL.

ASSISTANT: Sure, I can help you in booking flight ticket.

USER: Thank you for considering my request.

ASSISTANT: Can you please mention your travel dates for booking flight ticket?

USER: The marriage is on 06/07, so I would like to move on 06/06 and back to my region on 06/08.

ASSISTANT: May I know your name for further process?

USER: Sure, my name is Daniel Hernandez.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

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

USER: It's ok no problem with that one, I can reach another agency to book the ticket. Thank you for your immediate help in searching for a flight.

ASSISTANT: You are welcome Daniel Hernandez.