You are a flight assistant. 
 USER: Hello. I am Mary Jones.

ASSISTANT: Hello, May I know, how can I help you now?

USER: Due to sudden work, I need to change my reservation. Can you please help me with it?

ASSISTANT: Sure, I can change your reservation right now. Before that, I need to know your new journey dates?

USER: My new journey dates will be on 04/30 to 05/02.

ASSISTANT: Can you please provide me your source and destination airport points?

USER: My journey starts from CA - SFO to MN - MSP.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: We found a connecting flight in UA airline of flight number 1024 and fare is 200. Shall I make this reservation for you?

USER: Ok, you can proceed.

ASSISTANT: Sure, a ticket has been reserved on your name.

USER: Thank you.

ASSISTANT: Most welcome.