You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I support you today?

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

ASSISTANT: Sure, please share me your good name.

USER: Barbara Lewis here.

ASSISTANT: Please wait for a while.

USER: Ok.

ASSISTANT: Your reservation is found, please share me your source and destination airport codes.

USER: My airport codes are from OAK to LGA.

ASSISTANT: May I know your trip dates?

USER: I want to start on July 26 and return on July 28.

ASSISTANT: Do you need any specifications?

USER: I need a connecting flight. I want to travel in economy class.

ASSISTANT: Please wait for a while.

USER: Ok.

ASSISTANT: We found a Spirit airline and 1010 is flight umber with a fare of 200. Shall I proceed?

USER: You can proceed.

ASSISTANT: Your ticket is confirmed with an economy class.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.