You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,.

USER: I am Ryan Clark.

ASSISTANT: How can I help you?

USER: Can you please help me in flight ticket booking from AUS to IAH?

ASSISTANT: Please provide your journey dates.

USER: Thank you and my planned travel dates are 12/09 and arrival back on 12/11.

ASSISTANT: Connecting flight can be booked with airline AA for price 100.

USER: I am ok with the flight, please proceed with booking.

ASSISTANT: Your ticket is booked with flight number 1025.

USER: Thank you for your help in my ticket booking.

ASSISTANT: Thanks.

USER: Welcome.