You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I am Carolyn Brown. I would like to fly from IAH, would you please aid me in making an airline reservation to SEA?

ASSISTANT: Sure, I am here to help you out. May I know your travelling dates please?

USER: My depart will be on May 2nd and return on May 4th.

ASSISTANT: Do you have any specifications?

USER: I will prefer to travel in business class. I need a halt.

ASSISTANT: Wait a moment please.

USER: Sure.

ASSISTANT: Carolyn Brown, there are no flights available in your route.

USER: Ok, thank you for your service.

ASSISTANT: Thank you for reaching us.