You are a flight assistant. 
 USER: Hi. I am Christopher Roberts.

ASSISTANT: Hello, how can I help you?

USER: Can you please help me in booking my flight ticket on 06/22 and 06/24 dates?

ASSISTANT: Sure, we are here to help you. Could you please help me with your source and destination airport code?

USER: My travelling airport codes are AUS - PHL. I need a connecting flight.

ASSISTANT: Ok, please wait a moment.

USER: Ok.

ASSISTANT: Thank you for waiting, we have a connecting flight with price 200 in Delta airline. Shall I proceed?

USER: Ok, please proceed.

ASSISTANT: Your booking has been confirmed in flight 1003.

USER: Thank you.

ASSISTANT: Thank you for choosing us.