Hello,. I am Anthony Moore.
Hello. How may I help you?
 I am a Guitarist want to visit Philadelphia for celebrating Music festival, can you please book me a flight ticket?
Sure, I will help you with the ticket booking.
Thank you.
Can you please tell me your departure and arrival dates?
I want to travel on 12/24, and need to catch return flight on 12/26.
Ok, from which airport do you want to travel?
 I need to leave from my nearest airport IAH to reach PHL.
OK, thank you for providing the information. Please be on hold for a minute, I will search the flight and let  you know the details.
Sure.
I regret to inform you that, there are no flights running in this route on the dates you have provided to me.
Ok, no issues. Thanks for the information.
You are welcome. Thank you for reaching us. Have a nice day.