You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Jacob Hall.

ASSISTANT: How may I aid you today?

USER: I want to book a flight ticket  to Las Vegas as I need to attend my brother's marriage.

ASSISTANT: Ok.

USER: Please help me out.

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: May I have your travelling dates?

USER: My travelling dates are from 05/12 to 05/14.

ASSISTANT: Please share the airport codes of both routes.

USER: My source code is SEA and Destination code is LAS.

ASSISTANT: Ok, please wait.

USER: Ok.

ASSISTANT: We found a flight with a fare of 900. Can I proceed to book?

USER: Don't proceed, thanks for the information.

ASSISTANT: Ok, Thank you.