You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: I am Kimberly Green want to attend my colleague's ring ceremony, can you book a flight from OAK to DFW?

ASSISTANT: Sure, please provide your price limit?

USER: Sure, my flight price should not exceed 200.

ASSISTANT: May I know on which dates you want to travel?

USER: Sure, I want to travel on dates 11/13 and 11/15.

ASSISTANT: Please wait for a minute, let me check and revert to you.

USER: Ok.

ASSISTANT: Thanks for waiting, there is a Hawaiian airline with the fare of 100 matching to your preferences. Shall I confirm your ticket?

USER: Yes, proceed with my booking.

ASSISTANT: Your flight reservation is done with the flight number 1014.

USER: Thank you.

ASSISTANT: Thanks for opting us, hope to serve you again.