You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Debra Jones.

ASSISTANT: In which way I can help you at this moment?

USER: I am planning to visit New England Aquarium at Boston, could you please help me with booking a flight ticket from PHX to BOS?

ASSISTANT: Sure, I can help you in booking flight ticket. Could you please mention your travel dates for booking flight ticket?

USER: I would like to take off on 05/17 and return on 05/19.

ASSISTANT: Just give me a moment, I will check is there any flight available or not in this route as per your requested dates.

USER: Sure, take your time.

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

USER: That's ok, I will find an another alternate way to complete my trip. Anyways, thank you for the information.

ASSISTANT: Thank you for reaching us, have a good day.