You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: Stephanie Carter this side.

ASSISTANT: Yes, Stephanie.

USER: I would like to spend some time with my family, so I want to change my existing reservation. Can you please help me?

ASSISTANT: Sure, I will help you with that.

USER: Ok.

ASSISTANT: Stephanie, please be on hold while I am checking. Yes, I have found your reservation, can you help me with your airport codes?

USER: My new airport codes are from BOS to JFK.

ASSISTANT: Similarly, provide your new journey dates also.

USER: These are my travelling dates 09/09 and 09/11.

ASSISTANT: Ok, wait a moment.

USER: Ok.

ASSISTANT: I found Delta airline is available on your dates with flight number 1006, can I book it for you?

USER: Yes, proceed.

ASSISTANT: Stephanie, your ticket is booked. Have a safe flight.

USER: Thank you.

ASSISTANT: Thank you for reaching our service.