You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, please let me know your good name first?

USER: Michael Perez here.

ASSISTANT: Ok Perez, what service you are looking for?

USER: I would like to visit Arizona Science Center which is in Phoenix as there is a live demonstration of innovation products. Can you please help me to reach there by booking a flight ticket from CLT on 11/30?

ASSISTANT: Of course, I am happy to help you. Can you please provide me your destination airport and return date?

USER: Thank you. Sure, I would like to return on 12/02 from PHX.

ASSISTANT: Ok, can you please be on hold for a couple of seconds ?

USER: Sure, take your time to check for best flight.

ASSISTANT: Sorry Perez, there is no flight in the dates you have planned.

USER: Oh! It is sad to hear.

ASSISTANT: Sorry. Thank  you for reaching our services.

USER: I will go with another mode of transportation and I will contact your agency if my dates get change. Thank you for your time.

ASSISTANT: Ok. You are welcome.