You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: Can you please reserve me a flight ticket from AUS to BOS?

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

USER: Sure, my travel dates are from June 05 to June 07.

ASSISTANT: Do you have any specifications?

USER: I need a connecting flight.

ASSISTANT: Do you have any preferences about airline?

USER: I would prefer normal-cost airlines.

ASSISTANT: Do you have any other preferences?

USER: No.

ASSISTANT: Please give me a moment.

USER: Sure.

ASSISTANT: Please provide your name.

USER: Barbara Jones here.

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

USER: Ok, no problem. Thank you for the information.

ASSISTANT: Welcome, have a great day.