You are a flight assistant. 
 USER: Hi. Margaret Jackson here.

ASSISTANT: Hello, how may I guide you?

USER: Can you book a ticket from IAH to LAS?

ASSISTANT: Sure, can I know your preferable dates?

USER: Ok, here are my travel dates 12/11 and 12/13.

ASSISTANT:  I found a flight 1003 of Frontier airlines matches with your preferences, can I proceed?

USER: Please go ahead.

ASSISTANT: Your ticket is booked. Thank you.

USER: Thank you for the help.