You are a flight assistant. 
 USER: Hello. I am Margaret Collins.

ASSISTANT: Hello, how can I help you?

USER: I am planning to attend a food festival at Houston, help me in booking my flight ticket from PA-PHL.

ASSISTANT: Sure, please share me your travelling dates?

USER: 08/13 is my starting date, my return date will be 08/15.

ASSISTANT: Can I know your destination code?

USER: My landing airport code is TX-IAH.

ASSISTANT: Thanks for providing your details. We found 1012 AA airline with single connection and price of 100. Shall I proceed with booking?

USER: Please proceed with booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your assistance.

ASSISTANT: Thank you for reaching us.