You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Raymond White here.

ASSISTANT: Welcome to Global airline agency. How can I assist you today?

USER: I want to attend a live concert in JFK, could you please help me with booking a flight ticket?

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

USER: I want to start my journey on 06/13 and my return will be on 06/15.

ASSISTANT: Please provide your source airport code.

USER: My source airport code is AUS.

ASSISTANT: Please give me a moment.

USER: Ok.

ASSISTANT: Sorry to say that, there is no flights found under your details.

USER: It's bad to hear.

ASSISTANT: Welcome, have a great day.

USER: Anyway, thank you for your help.

ASSISTANT: Thank you for reaching us.Have a great day.