You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I guide you?

USER: I am Elizabeth Walker. I would like to book a flight ticket from SEA to EWR.

ASSISTANT: Sure, can I know your preferable dates?

USER: i am planning to start on 05/14 and return back on 05/16.

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

USER: Yes, please proceed.

ASSISTANT: Your ticket is booked.

USER: Thank you for the help.

ASSISTANT: Thank you for your help.