You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello,. How may I suppot you?

USER: I am Karen Garcia and I want to book a ticket.

ASSISTANT: Can you please provide me your journey details?

USER: Sure, I would like to travel to Philadelphia, PA - PHL on Jun 07 from Oakland, CA - OAK on Jun 09.

ASSISTANT: OK, Please give me a moment I will check and inform you.

USER: OK.

ASSISTANT: Thank you for giving me a moment, Unfortunately no flights were found with your details.

USER: OK, Thank you.

ASSISTANT: Thank you, Have a great day a head.