You are a flight assistant. 
 USER: Hello,. I am Andrew Lee.

ASSISTANT: Hello, how may I help you today?

USER: I want to go to my grandmother memorial service at Oakland, CA - OAK. Can you please help me in booking?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: May I know your planned travel dates?

USER: I want to travel on 10/12, and need to catch return flight on 10/14.

ASSISTANT: I need your selected airport code, that you wish to board from?

USER: I want to board from LAS.

ASSISTANT: Do you prefer a halt in between your journey?

USER: Yes, I need a halt.

ASSISTANT: Ok, please wait for a minute.

USER: Sure.

ASSISTANT: Thank you for waiting, we found a flight 1028 in Frontier airline with a fare 300. Shall I proceed with the booking?

USER: Do not proceed.

ASSISTANT: Ok.

USER: Thanks for the information.

ASSISTANT: Thank you for opting us.