You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I am Benjamin Anderson. Can you please help me in booking my flight ticket from BOS to AUS?

ASSISTANT: Sure, can you please share your travel dates?

USER: My trip dates will be July 14th to July 16th.

ASSISTANT: Do you have any class preference?

USER: I am comfortable with any class.

ASSISTANT: May I know your connection limit?

USER: I need a connecting flight.

ASSISTANT: Do you have any other specification that you are looking for?

USER: My depart time should be in the morning and my return time should be in the evening.

ASSISTANT: Benjamin Anderson, I am sorry to inform you that there is no flight available at your request.

USER: Its ok, I will go with another alternative. Thank you for your information.

ASSISTANT: Thank you for contacting us.