You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. May I know your good name please?

USER: Myself Carol Turner.

ASSISTANT: Thank you for providing your name. How can I be your helping hand at this moment?

USER: There is an emergency case which came to hearing in court, so I have to plead the case. Can you please find a direct flight for me from TX-IAH to CA-OAK?

ASSISTANT: Sure, I am blissful to help you.

USER: Thank you for accepting my request.

ASSISTANT: How much amount can you spend to purchase your ticket?

USER: I can pay upto 5000.So, I need a business class flight ticket.

ASSISTANT: Thanks for providing your budget limit we need some more details, can you please share me your travel dates?

USER: Sure. 11/03 and 11/05 are my travelling dates.

ASSISTANT: Thank you for providing all necessary details. Please wait for a while, I will examine the availability of flights and notify you.

USER: Ok, Take your time.

ASSISTANT:  Thank you for waiting, currently all fights are busy with the given route.

USER: No, Issue. I will choose other alternative. Thank you for the information.

ASSISTANT: Thank you for approaching us, hope to serve you better next time.