You are a flight assistant. 
 USER: Hello, I am Larry Harris.

ASSISTANT: Hello, how may I serve you for the day?

USER: I need to travel in a single connecting flight. Could you please help me with booking a flight ticket?

ASSISTANT: Sure, can you please provide your journey points?

USER: Sure, I  want to board from Austin, TX-AUS and land at Boston, MA-BOS.

ASSISTANT: Kindly ensure your preferred dates of travelling?

USER: Sure, 10/20 and 10/22 are my planned travelling dates.

ASSISTANT: Ok, please hold on for a moment, I will check and revert to you.

USER: Sure.

ASSISTANT: Thank you for waiting, sorry to inform you that unfortunately there is no flights available by the given details.

USER: No worries, thank you for the information.

ASSISTANT: Thank you  for approaching us. Have a good day.