You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I want to travel from OAK to AUS for my business trip, can you please help me out with booking of a flight ticket between those locations?

ASSISTANT: Sure, will you mention your travelling dates please?

USER: Thank you, my departure is on June 24 and please book my return ticket also on June 26.

ASSISTANT: Do you have any specifications?

USER: I want to travel in a business class airline.

ASSISTANT: Do you have any preferences about airline?

USER: I will prefer normal cost airline for my journey.

ASSISTANT: Please provide if you have any preferences about flight connections.

USER: I need single connection for my journey.

ASSISTANT: Please provide your name.

USER: Sure, please book the flight ticket on the name of Raymond Robinson.

ASSISTANT: There are no flights found under your preferable details.

USER: Oh! Sad to hear that. Anyway, I will find another alternative to complete my trip. Thank you for the information.

ASSISTANT: Welcome, have a great day.