You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: As I am an actor, I want to attend Film festival at Philadelphia, PHL. Can you please book a ticket from ATL?

ASSISTANT: Sure, may I know the planned travel dates?

USER: My journey dates are Jan 4 and Jan 6.

ASSISTANT: Please provide me the specifications.

USER: My return time is evening.

ASSISTANT: May i know the name?

USER: I am Samantha Thompson.

ASSISTANT: Sorry, there are no flights are available for your desired intent.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for reaching us.