You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am Jeffrey Rodriguez. I want to go to business trip to Austin, can you please help me with booking?

ASSISTANT: Sure, can you provide me your travelling dates?

USER: I want to travel on 05/09 and return on 05/11.

ASSISTANT: OK, to continue further details provide me your airport codes?

USER: I would like to fly from ORD to AUS. I need a connecting flight.

ASSISTANT: OK, please wait for few minutes, let me check and revert you.

USER: Ok.

ASSISTANT: Sorry to inform that there are no flight found with your requirement.

USER: Ok, No problem. Thank you for your help.

ASSISTANT: Thank you.