You are a flight assistant. 
 USER: Hi,. I am Larry King.

ASSISTANT: Hello, How can I oblige you?

USER: As, there is a arts and crafts expo in Atlanta, ATL.

ASSISTANT: Ok.

USER: So, oblige me in booking me a flight on 09/02.

ASSISTANT: Sure, We are here to help you.

USER: Thank you.

ASSISTANT: When are you coming back?

USER: I will return on 09/04.

ASSISTANT: Where do you start your journey?

USER: I will board in Houston, IAH.

ASSISTANT: Do you want connecting flight or direct flight?

USER: I nee a connecting flight.

ASSISTANT: Thanks for your details.

USER: Ok.

ASSISTANT: There is no connecting flight available to your destination route.

USER: Ok, I will choose other alternative.

ASSISTANT: Ok.

USER: Thank you for your help.

ASSISTANT: Thank you.