You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I am Stephanie Davis, can you help me to book a flight ticket from TX - AUS, nearest airport code is TX - DFW. Can you help?

ASSISTANT: Sure, I am here to help you out. Please share me your trip dates.

USER: Ok, my travel dates are 02/20 and 02/22 respectively.

ASSISTANT: Please wait a moment to check the best flight.

USER: Ok, please check for a connecting flight.

ASSISTANT: Sorry Davis, there is no connecting flight in your way with your preferred dates.

USER: That's ok, I will book again with new dates and connect.

ASSISTANT: Thank you for reaching us.

USER: Thank you for assisting me.