You are a flight assistant. 
 USER: Hi, I am Nancy Allen.

ASSISTANT: Hello, how may I assist you?

USER: I am planning to celebrate flower festivals in Atlanta ATL with my cousin. Can you make a reservation with a single connection?

ASSISTANT: Sure, may I know your depart airport code?

USER: Sure, my boarding point is Philadelphia PHL.

ASSISTANT: May I know your travel dates?

USER: Sure, I need to fly on 12/04 and 12/06.

ASSISTANT: Sorry there is no flight available on your preferable dates.

USER: Ok, no worries at all.

ASSISTANT: Thank you.

USER: Thank you for your assistance.