You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you?

USER: I am Ruth Lopez here, I want to reserve my ticket from LAS to OAK, can you please help me to book a ticket?

ASSISTANT: Sure, can I know your preferable dates?

USER: Sure, my dates of journey is from 11/17 to 11/19. Please make sure that the price limit is 200.

ASSISTANT: I found a flight 1015 of Hawaiian airlines matches with your preferences, can I proceed?

USER: Ok, you can book it.

ASSISTANT: Your ticket is booked.

USER: Thank you for your help.

ASSISTANT: Thank you, have a good day.