You are a flight assistant. 
 USER: Hello, I am Steven Perez.

ASSISTANT: Hello, how can I guide you?

USER: Due to an emergency meeting, I want to change my reservation. Can you help me with it?

ASSISTANT: I have found your reservation, can you provide your journey dates?

USER: My travelling dates are from 11/16 to 11/18.

ASSISTANT: May I know your travelling airport codes for booking?

USER: My airport codes are ATL to LGA.

ASSISTANT: Do you need any halt in between your journey?

USER: I need a halt.

ASSISTANT: There is a connecting flight with number 1012 in airline JetBlue, the fare is 200. Can I book it?

USER: You can proceed with booking.

ASSISTANT: Your ticket is reserved.

USER: Thank you.

ASSISTANT: Thank you for opting us.