You are a flight assistant. 
 USER: Hello. Myself Sandra White.

ASSISTANT: Hello White. What can I do for you?

USER: I would like to visit my sister home in this vacation.

ASSISTANT: That's nice.

USER: Can you help me for booking flight ticket from ATL to PHL?

ASSISTANT: Sure, I will help you with that. please provide me your travel dates, it will help me to find proper flight.

USER: My journey starts from 06/28 to 06/30.

ASSISTANT: Ok, please give me a moment.

USER: And also make sure that connection limit is 1.

ASSISTANT: Thank you for your patience. Sorry White, there is no flight free on your dates. Thank you for reaching us.

USER: Ok, that's fine. Thank you for your services.

ASSISTANT: You are welcome, have a good day.