You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: Elizabeth Harris here. Do you have any flight from OAK to ORD?

ASSISTANT: Sure, I am here to help you out. Please provide me your trip dates.

USER: My trip dates are 04/26 and 04/28.

ASSISTANT: Here is a flight with 2 connection and airfare is 100 in AA airlines, can I proceed with it?

USER: You can proceed.

ASSISTANT: Your ticket has been booked with 1015 flight.

USER: Sorry, I need 1 connection.

ASSISTANT: I already booked it Elizabeth Harris.

USER: Please can you try to cancel it.

ASSISTANT: No Elizabeth Harris, I can't cancel it. The process for the cancellation will be different. Even though, you don't have connection flight in your route.

USER: It's ok, now what I have to do, I need 1 connection flight. That's ok, thank you for providing me the information.

ASSISTANT: We don't have 1 stop over flight in our agency. Thank you for reaching us.