You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I want to visit Philadelphia, can you please help me to book a ticket from NY-JFK to PA-PHL?

ASSISTANT: Please share your travel dates?

USER: Sure, my preferable dates of travel is from 07/24 to 07/26.

ASSISTANT: Sorry to say, there is no flight on your preferred dates.

USER: Ok, no problem.

ASSISTANT: May I know your name please?

USER: Sure, my name is Amanda Scott.

ASSISTANT: Thanks for reaching us.

USER: Most welcome.