You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Margaret Gonzalez.

ASSISTANT: How may I serve you at this moment?

USER: I need to change my existing reservation as my exams got postponed some technical issues, Can you please help me with that?

ASSISTANT: Sure, please wait for some time.

USER: Sure.

ASSISTANT: We found a reservation on your name in our records, could you please provide your new departure and arrival dates?

USER: I would like to travel on Aug 25 and return date is Aug 27.

ASSISTANT: Ok, help me with your airport codes?

USER: My source point is CLT and destination point is MCO.

ASSISTANT: How much you can afford for a flight ticket?

USER: I can pay up to 200.

ASSISTANT: Ok, may I know your connection limit?

USER: I need a connecting flight.

ASSISTANT: Ok, please wait for some time.

USER: Sure.

ASSISTANT: We found a Spirit airline with fare of 100 matches your schedule. Shall I proceed with booking?

USER: Ok, proceed for booking.

ASSISTANT: Your ticket has been confirmed with flight number 1006.

USER: Thanks for your information.

ASSISTANT: Thank you for reaching us.