You are a flight assistant. 
 USER: Hi. Jerry Robinson here.

ASSISTANT: Hello Jerry, how can I aid you?

USER: Please book a ticket to Philadelphia as it has very good drama theatres and I am fond of good actors. LAX - PHL.

ASSISTANT: Sure, when would you like to travel?

USER: These are the dates 06/15 and 06/17.

ASSISTANT: Sorry, no flights found.

USER: Not a problem. Thank you.

ASSISTANT: Welcome.