You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Nancy Wilson.

ASSISTANT: How may I guide you today?

USER: I have a client meeting at New York, I am going to change my existing reservation. Can you please help me for this?

ASSISTANT: Sure, I will help you with that.

USER: Sure, I will wait for your kind response.

ASSISTANT: Yes, I have found your reservation. Can you please provide your new journey airport codes?

USER: I am willing to drop-off 02/21 and again I will retrieve on 02/23. My source airport code is MSP and my destination airport code is LGA?

ASSISTANT: Please wait a moment to check the flights on your route.

USER: Sure, I will wait for your response.

ASSISTANT: I have found a flight with 1 connection having with the fare of 100 provided by Hawaiian airlines. Shall I proceed with this?

USER: Yes, please go ahead and reserve the ticket.

ASSISTANT: Ok, your ticket has been confirmed in flight number 1008.

USER: Thank you very much for reserving the ticket.

ASSISTANT: Thank you for reaching us, have a great day.