You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I assist you?

USER: I am planning to attend business meeting at JFK, can you please help me with booking a flight ticket from OAK?

ASSISTANT: Sure, May I know the journey dates?

USER: Sure, I would like to take off on Apr 29 and return on May 1.

ASSISTANT: Do you have any connection limit?

USER: I need a flight with 1 connection.

ASSISTANT: Do you have any class preference?

USER: I prefer economy class.

ASSISTANT: Is there any other requirements?

USER: No.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: May I know your name?

USER: My name is Karen Garcia.

ASSISTANT: Sorry, No flights found with your chosen dates.

USER: Ok, no issues. Thank you for the information.

ASSISTANT: Thank you for opting us.

USER: You are welcome.