You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Katherine Gonzalez. Can you please help me in booking my flight ticket from PHL to JFK?

ASSISTANT: Let me know your travelling dates.

USER: My trip dates will be Mar 26th to Mar 28th.

ASSISTANT: Do you have any preference?

USER: Yes, I need a connecting flight.

ASSISTANT: Ticket is found with airline American for price 100 having flight number 1013.

USER: If the return flight is in the evening with class economy please proceed.

ASSISTANT: Sorry, no flights found.

USER: Its ok, thank you.

ASSISTANT: Thank you.