You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: My name is Eric Baker, need your help in booking a flight ticket from OAK to PHX.

ASSISTANT: Sure, can I know your travel dates?

USER: My preferable travelling dates are from 02/18 to 02/20.

ASSISTANT: Give me a minute, I will be back with the details.

USER: Ok.

ASSISTANT: The flight 1004 of Frontier airlines available on your requested dates. Shall I book the ticket?

USER: Ok, please book my ticket.

ASSISTANT: Ok. Your ticket is booked.

USER: Thank you.

ASSISTANT: Welcome.