You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: I am planning to change my reservation, help me in that?

ASSISTANT: Ok, please share your name?

USER: I am Jonathan Green.

ASSISTANT: Your reservation found , can you please share your details?

USER: Sure, my airport codes are OAK to ATL.

ASSISTANT: Can you please share your trip dates?

USER: My travel dates are Nov 18 to 20.

ASSISTANT: Do you prefer any connections?

USER: I need 1 connection flight.

ASSISTANT: There is a connected flight in Delta airlines with the fare 100.

USER: Proceed for booking.

ASSISTANT: Your booking is done.

USER: Thank you.

ASSISTANT: Thank you.