You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Larry Hall.

ASSISTANT: How can I assist you today?

USER: I want to meet my brother on his birthday, can you book me a ticket?

ASSISTANT: Sure, will you mention your travelling dates please?

USER: My travelling dates are Apr 26 to Apr 28.

ASSISTANT: Please provide your airport codes that you want to travel.

USER: My airport codes are from AUS to DTW.

ASSISTANT: Please give me a moment.

USER: Sure, take your time.

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. Can you check for that?

ASSISTANT: There is no direct flight found under your preferable details.

USER: Ok, no problem thank you for your help.

ASSISTANT: Welcome, have a great day.