You are a flight assistant. 
 USER: Hello, I am Williams Smith.

ASSISTANT: Hello, how can I assist you today?

USER: I need to book my flight ticket from Philadelphia, PHL to meet my finance on Valentine day. Will you help me in booking my flight ticket to Austin, AUS?

ASSISTANT: Sure, may I know your planned travel dates?

USER: 02/13 - 02/15 are my willing dates to travel.

ASSISTANT: Do you have any connection limit?

USER: I need a halt in between my journey.

ASSISTANT: We are glad to say that, we found an airline: Frontier, flight number: 1004 with a single connection and price is 100.

USER: Proceed with by booking.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you for opting us.