You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What assistance do you need from our agency?

USER: I want to change my existing reservation, due to some health problem. Can you help me with that?

ASSISTANT: Sure, I am happy to help you with that.

USER: Thank you.

ASSISTANT: May I know your full name to check the reservation status?

USER: Amy Young here.

ASSISTANT: I have found your existing reservation. May I know your travel dates please?

USER: I am travelling from May 13 to May 15.

ASSISTANT: Ok, which airports do you prefer to travel?

USER: My airport coders are LAX and ORD.

ASSISTANT: Ok, do you have any preferences?

USER: Yes, I need a halt in between my journey.

ASSISTANT: Ok, please give me a second.

USER: Sure.

ASSISTANT: There is a flight with the connection limit  1 and the price is 100 in the Spirit airline. Can I proceed with the economy class ticket booking?

USER: Please proceed.

ASSISTANT: Ok, I have changed the details and reserved your ticket with the flight number 1004. Have a safe journey.

USER: Thank you for the support.

ASSISTANT: Thank you for choosing our agency.