You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: My name is Amanda King and I want you to book a flight from JFK to OAK. Can you please help?

ASSISTANT: Sure, may I know your travelling dates?

USER: I will start on 11/17 and return on 11/19.

ASSISTANT: Could you please help me with your price limit?

USER: Please don't worry about price as I can pay up to 5000.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry Amanda King, no flights found on your requested travelling dates.

USER: No problem, thank you.

ASSISTANT: Thank you for approaching us, have a nice day.