You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: I am Emily Baker.

ASSISTANT: Ok.

USER: Please book a flight ticket from Philadelphia, PHL to Austin, AUS.

ASSISTANT: Sure, I am here to assist you. May I know your depart and arrival dates?

USER: My planned journey dates are 07/10 and 07/12.

ASSISTANT: Do yo have any other requirements?

USER: I need a connecting flight.

ASSISTANT: Sorry to inform you that, no flights are available on your requirement.

USER: Ok, No issues. Thank you.

ASSISTANT: Thank you for choosing us.