You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you today?

USER: I am Stephanie Evans, help me to book a flight to visit my grand father home. Can you book a connecting flight?

ASSISTANT: Sure Evans, can I know your travelling dates?

USER: I will fly on 12/20 and return on 12/22.

ASSISTANT: Could you please help me with your airport codes?

USER: I will fly from TX-AUS to MN-MSP.

ASSISTANT: Please provide your price limit.

USER: My budget is 50000.

ASSISTANT: There is a Frontier 1003 airline with fare of 100 which matches your travelling dates. Shall I proceed with booking?

USER: Please proceed with booking.

ASSISTANT: Your booking has been confirmed on name of Stephanie Evans.

USER: Thank you for helping me.

ASSISTANT: Thank you for approaching us, happy journey.