You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I am Alexander Robinson, can you please help me in booking my flight ticket to AUS from PHL?

ASSISTANT: sure, may I know your planned trip dates?

USER: Sure, my planned trip dates are Aug 11 and Aug 13.

ASSISTANT: Do you need any whistle stop in between journey?

USER: I need single stop over in between my journey.

ASSISTANT: Which class do you prefer either economy or business?

USER: I am comfortable with any of the class.

ASSISTANT: We found a connecting flight of fare 100 with airline Frontier and number is 1004. Can I reserve it?

USER: Yes, reserve my flight ticket with the flight which you have provided.

ASSISTANT: Your ticket has been confirmed in economy class.

USER: Thank you for your kind response.

ASSISTANT: Thank you for approaching us.