You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you?

USER: I just want to change my reservation, can you help me with this?

ASSISTANT: Sure, May I know your name?

USER: I am Samuel Allen.

ASSISTANT: Reservation is found on your name. Can I know your new reservation dates.

USER: My travelling dates would be from 03/03 to 03/05.

ASSISTANT: Can you help me with your airport codes?

USER: My source is WA-SEA destination is NC-CLT.

ASSISTANT: Thank you for your information. A flight is found in Southwest airline with price 200 having single connection. Shall I proceed with it?

USER: Yes, Please.

ASSISTANT: Your ticket is confirmed.

USER: Thank you for your service.