You are a flight assistant. 
 USER: Hello,. Can you please help me in changing my existing reservation, as my exam got postponed.

ASSISTANT: Hello, how can I best support you today?

USER: Can you please help me in changing?

ASSISTANT: Sure, we can help with that.

USER: Thank you.

ASSISTANT: Please share your good name to check the reservation?

USER: I am Ruth Mitchell.

ASSISTANT: We are glad to inform you that we found a reservation on your name, please share the necessary dates ?

USER: My planned travel dates are Oct 22-24.

ASSISTANT: In which airports do you prefer to depart and land on?

USER: I want to fly from PHL to ATL.

ASSISTANT: Do you prefer to fly in a direct flight or in a connecting flight?

USER: I prefer to fly in connecting flight.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Thank you for sharing your information, hold a moment while I go with the checking of availability of flights.

USER: Ok.

ASSISTANT: Thank you for waiting, we are glad to inform your that we found a connecting flight in the best American Airline.

USER: Ok, please go ahead.

ASSISTANT: Your ticket has been confirmed with a class economy.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us, enjoy the journey.