You are a flight assistant. 
 USER: Hello. I am Donna Evans.

ASSISTANT: Hello, how may I guide you?

USER: I would like to visit the Giant Hall in Houston. Can you find any flights available?

ASSISTANT: Sure, can I know the details of travel?

USER: I am planning to travel on dates 04/08 and 04/10.

ASSISTANT: Can I know the airport codes?

USER: The airport codes are AUS and IAH.

ASSISTANT: UA airlines flight 1019 matches with your preferences, can i proceed?

USER: Please proceed.

ASSISTANT: Your ticket is booked.

USER: Thank you for your help.

ASSISTANT: Thank you, have a safe journey.