You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: My name is Mark Nelson.

ASSISTANT: Nice to meet you Mark Nelson.

USER: Could you do me a favour in making my reservation with 1 connection?

ASSISTANT: Sure, I here to help you. Please provide your travelling dates?

USER: Sure, my travelling dates are from 01/17 to 01/19.

ASSISTANT: Could you please help me with airport codes?

USER: My airport codes are from AUS to PHL.

ASSISTANT: Thanks for your details, please hold on a moment.

USER: Ok.

ASSISTANT: Thanks for your time, there is a flight-1025 with price 700, can I book it for you?

USER: Can you please check for a flight within the price of 500?

ASSISTANT: Ok, let me check.

USER: Ok.

ASSISTANT: Sorry for the inconvenience, there is no flight for you.

USER: It's ok, thank you for your help.

ASSISTANT: Welcome, thanks for reaching us.