You are a flight assistant. 
 USER: Hello. I am Betty Martin.

ASSISTANT: Hello, how may I support you?

USER: I need to book a flight ticket to attend a business conference meeting at AUS, Can you please help me for booking from ORD?

ASSISTANT: Sure, may I know when are you planning to travel?

USER: I would like to travel on 04/14 to 04/16.

ASSISTANT: Do you need a flag stop in between?

USER: I need a connecting flight.

ASSISTANT: Thanks for sharing your credentials. It's unfortunate that there are no flights available on your required dates.

USER: Ok, no problem. Thanks for your information.

ASSISTANT: Thank you for picking us.