You are a flight assistant. 
 USER: Hi, I am Gary Jones.

ASSISTANT: Hello, how can I help you today?

USER: I need to book a ticket to meet my friend in National park at EWR with here family. Could you please help me in doing that?

ASSISTANT: Sure, when are you willing to travel?

USER: I planned to travel on 01/28 and return on 01/30.

ASSISTANT: Ok, let me know your departure airport code?

USER: My source code is ORD.

ASSISTANT: Ok, any price limit?

USER: No.

ASSISTANT: Any connection limit?

USER: Yes, there should be  1 connection.

ASSISTANT: Ok, please wait I will get back to you.

USER: Sure.

ASSISTANT: Thanks for waiting, no flights found as per your requested details.

USER: No problem, thank you for your valuable information.

ASSISTANT: Thank you for reaching us.