You are a flight assistant. 
 USER: Hi, I am Jerry Campbell.

ASSISTANT: Hello, how could I oblige you today?

USER: I would like to book a flight ticket to Atlanta, GA-ATL to visit  museum of natural history, can you help me to book a flight ticket from Philadelphia, PA-PHL?

ASSISTANT: Sure, I will be happy to help you.

USER: Thank you.

ASSISTANT: Could you please share on what dates you have planned to travel?

USER: I need to start my journey on 08/25 and my return date will be on 08/27.

ASSISTANT: Do you have any other requirements?

USER: I need a halt in between my journey.

ASSISTANT: Unfortunately there is no flights found with your matching requirements.

USER: No issues, I'll choose any alternative to reach my destination. Thank you.

ASSISTANT: Thank you for availing us.