You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: My interview got postponed, Can you please change my existing reservation?

ASSISTANT: Sure, may I know your name?

USER: I am Kimberly Phillips.

ASSISTANT: Please give me a moment to check your ticket status.

USER: Sure.

ASSISTANT: I found your reservation, please provide your itinerary dates.

USER: Ok, my travelling dates are Nov 21 and Nov 23.

ASSISTANT: May I know your genesis and terminus airport codes?

USER: My source is Detroit, DTW and destination is New York, EWR.

ASSISTANT: Do you prefer a direct flight?

USER: No, I want single connection.

ASSISTANT: Do you have any other preferences?

USER: No.

ASSISTANT: Please give me a moment.

USER: Ok.

ASSISTANT: Spirit airlines with flight 1004 is providing a connecting flight and ticket costs you 100 in economy class.

USER: Ok, please proceed.

ASSISTANT: Your ticket is confirmed Kimberly Phillips.

USER: Thank you.

ASSISTANT: Thank you for choosing us.