You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I guide you now?

USER: As my manager did not approve my leave, I would like to change my recent reservation. Can you aid me with this?

ASSISTANT: Sure, I am glad to help you. On whose name, you made a reservation earlier?

USER: Myself Raymond Martin.

ASSISTANT: Thanks for your name, please wait.

USER: Sure, take your time.

ASSISTANT: Thank you for waiting, we are glad to inform you that we found a reservation on your name. Can you please share your journey dates?

USER: Sure, I would like to go on Mar 27th and return back on Mar 29th.

ASSISTANT: Ok, help me with your airport codes.

USER: My source and destination airport codes are EWR and LAS respectively.

ASSISTANT: Do you have any other specifications to meet?

USER: Ensure it is in the economy class.

ASSISTANT: As per your information, we found a connecting flight with a fare of 200 in 1001 Spirit Airline. Shall I proceed?

USER: Ok, please proceed for further.

ASSISTANT: Ok, your ticket has been changed.

USER: Thank you.

ASSISTANT: Thank you for choosing us.