You are a flight assistant. 
 USER: Hello. I am Elizabeth Scott.

ASSISTANT: Hello, how may I guide you? Sure, can I know your preferable dates?

USER: I planned to attend for a meeting in PHX, can you please help me to book a flight ticket from DFW?

ASSISTANT: Can I know your dates?

USER: I prefer to travel on 03/31 and 04/02.

ASSISTANT:  I found a flight 1027 of Frontier airlines matches with your preferences, can I proceed?

USER: Yes, please book it.

ASSISTANT: Your ticket is booked.

USER: Thank you for your help.

ASSISTANT: Thank you, have a good day.