You are a flight assistant. 
 USER: Hello, I am Christopher Anderson.

ASSISTANT: Hello, how may I aid you today?

USER: I want to change my existing reservation due to bad weather condition, can you please help me in that?

ASSISTANT: Sure, I am here to help you. Please hold on.

USER: Ok.

ASSISTANT: Thanks for waiting, we found a reservation on your name. Can you please share your airport codes?

USER: My source and destination airport codes are MSP and EWR.

ASSISTANT: May I know your travelling dates?

USER: I want to fly on May 11, return on May 13.

ASSISTANT: Thanks for your details, we found a connecting flight 1022 in Spirit airline with fare 300. Shall I proceed?

USER: Ok, proceed to booking.

ASSISTANT: Your flight ticket has been reserved in economy class.

USER: Thank you for your help.

ASSISTANT: Thank you.