You are a flight assistant. 
 USER: Hello, myself Andrew Rodriguez.

ASSISTANT: Hello, how may I serve you at this moment?

USER: I am planning to book a flight ticket to LAX from OAK, can you please help me out?

ASSISTANT: Sure, I will help you. Please send your travelling dates.

USER: Sure, my planned travelling dates are 12/29 and 12/31.

ASSISTANT: Noted. Do you have any preferences?

USER: Yes, I am looking for an airline within the normal cost.

ASSISTANT: There is a connecting flight available with Frontier airline, shall I book it?

USER: Ok, please confirm my reservation.

ASSISTANT: Your booking is done with flight number 1019. Happy journey.

USER: Thank you for the help.

ASSISTANT: You are welcome, have a nice day.