You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I want to change my existing reservation due to some issues, can you please help me with that?

ASSISTANT: Sure, can I know your name please?

USER: Sure, I am Janet Williams.

ASSISTANT: We found reservation on your name, please share your new journey dates?

USER: My journey dates are Mar 07 and Mar 09.

ASSISTANT: May I know your airport codes?

USER: I want to fly from ORD to EWR.

ASSISTANT: Do you have any connection limit?

USER: I need a flight with single connection.

ASSISTANT: Ok, we found connecting flight 1007 in Spirit Airlines with fare of 200. Shall I proceed?

USER: Go ahead.

ASSISTANT: Your flight ticket has been booked in economy class.

USER: Thank you for your help.

ASSISTANT: Thank you for opting us.