You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello. How can I help you?

USER: I am Timothy Johnson. I want to book a flight ticket for meet my childhood friend after a long gap in Philadelphia, PHL. Can you please help me in booking with connected flight?

ASSISTANT: Sure, I will help you. May I know the travelling dates?

USER: Price limit should not cross 5000. My travelling dates on 06/14 to 06/16.

ASSISTANT: I need your source code for further booking.

USER: My source point is Atlanta, ATL.

ASSISTANT: Ok, Wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting. There is no flight found to your destination.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: Thanks for reaching us. Have a nice day.