You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: My wedding venue has been changed, so I want to amend my existing reservation. Could you help me out?

ASSISTANT: Sure, I will help you. Please mention your name.

USER: My name is Justin Mitchell.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: I found your reservation. So please share your travel dates.

USER: My itinerary dates are 06/17 and 06/19.

ASSISTANT: May I know your airport codes?

USER: My airport codes are MCO and PHX.

ASSISTANT: Ok, please give me sometime.

USER: Please make it fast.

ASSISTANT: Yes Justin. Flight 1002 of Southwest airlines is available for you with price 100.

USER: Go ahead to book my ticket.

ASSISTANT: Justin, your ticket is reserved.

USER: Thank you.

ASSISTANT: Thank you for choosing us.