You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I support you?

USER: I am Laura Evans here. I am planning to book my ticket from ORD to AUS. Can you please help me with booking a flight ticket?

ASSISTANT: Sure, I am here to help you. On which dates would you like to travel?

USER: I would like to start my journey on Mar 30 and return back to my home town on Apr 01.

ASSISTANT: Are you comfortable to travel in economy or business class?

USER: I prefer to book my ticket in business class only.

ASSISTANT: Do you have any other specifications?

USER: I need a connecting flight and my return time should be in the evening.

ASSISTANT: Ok, please wait for a minute.

USER: Sure, I will wait.

ASSISTANT: Sorry, there were no flights found on your route.

USER: Not an issue, anyway thank you for the information.

ASSISTANT: Thank you for approaching us.