You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Katherine Taylor.

ASSISTANT: How may I assist you?

USER: I want to change my existing reservation due to some personal issues. Can You help me with that?

ASSISTANT: Sure, please wait a while.

USER: Sure.

ASSISTANT: Thanks for your time, we found a reservation on your name. Can you please provide the new journey details?

USER: Airport codes are from PHL to AUS. Dates are from 05/21 to 05/23. Make sure that price limit is 200. And connection limit is 1.

ASSISTANT: Ok. Please wait for a minute.

USER: Sure.

ASSISTANT: We found a Southwest airline flight with number: 1017, price: 100 and one connection available that matches your requirements. Shall I proceed?

USER: Ok, You can proceed with booking.

ASSISTANT: Your  ticket was confirmed.

USER: Thanks for your service.

ASSISTANT: Thanks for reaching us.