You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: I want to change my existing reservation due to some health problem. Can you please help me with that?

ASSISTANT: Sure, may I know your name please?

USER: Margaret Clark here.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: We found a reservation with your name, please share your new journey details.

USER: Please, reserve me a flight ticket from MCO to ATL.

ASSISTANT: May I know your travel dates?

USER: My travelling dates are 07/07 and 07/09.

ASSISTANT: May I know your price limit?

USER: I can afford up to 1000.

ASSISTANT: We found a Spirit airline, flight number: 1008, price: 700 with one connection.

USER: Please proceed to book.

ASSISTANT: Your flight ticket has been confirmed.

USER: Thank you for your support.

ASSISTANT: Thank you for choosing us.