You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I guide you?

USER: Matthew Young here. Do you have any flight from AUS to HOU?

ASSISTANT: Sure, can I know your preferable dates?

USER: My trip dates are 04/19 and 04/21.

ASSISTANT: I found a flight 1020 of Delta airlines matches with your preferences, can I proceed?

USER: You can proceed.

ASSISTANT: Your ticket is booked.

USER: Thanks for your help.

ASSISTANT: Thank you, have a good day.