You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: I am Laura Mitchell. I would like to change my recent reservation due to my health conditions. Can you please help me with that?

ASSISTANT: Sure, I am here to help you. Please wait a moment, I will check the status of your reservation.

USER: Sure.

ASSISTANT: Laura Mitchell, I found your reservation. Can you please provide your airport codes?

USER: My airport codes are NY-LGA and CA-OAK.

ASSISTANT: Please provide your planned travel dates.

USER: My planned travel dates are Dec 4 and Dec 6.

ASSISTANT: Do you have any other specifications?

USER: I need a halt with a price limit of 200.

ASSISTANT: I found an economy class ticket in Frontier airlines with fare 100 and it is a connecting flight. Can I book your ticket?

USER: Please book the ticket.

ASSISTANT: Ok, your booking is confirmed with flight number 1016.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing us.