You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Brandon Baker.

ASSISTANT: How can I assist you today?

USER: Can you help me in changing my recent reservation, as my exam is postponed?

ASSISTANT: Sure, will you please give me a moment?

USER: Ok.

ASSISTANT: Your reservation is found. Will you mention your airport codes please?

USER: My source is AUS and destination is PHX.

ASSISTANT: Please provide your travelling dates that you want to travel.

USER: My journey dates are 04/24 to 04/26.

ASSISTANT: Please give me a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, there is a flight with price 100 and the connections 1 is available. Shall I confirm your ticket?

USER: I need a direct flight.

ASSISTANT: There is no flights found under connections 0.

USER: No issue, thank you for checking.

ASSISTANT: Welcome, have a great day.