You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you now?

USER: I want to meet my sister on her birthday, so please book my ticket from IAH to CLT.

ASSISTANT: Sure, I am happy to help you with that. Can I have your travel dates please?

USER: My itinerary dates are Oct 1 and Oct 3.

ASSISTANT: Ok, please let me know the timings of your journey too.

USER: I want to depart in the evening.

ASSISTANT: Which type of airlines do you prefer to travel?

USER: I am not comfortable with low-cost airlines, could you book my ticket in normal-cost airlines?

ASSISTANT: Sure, please let me know other specifications too.

USER: I need a connecting flight.

ASSISTANT: Sorry to inform you that no evening flight is available to you while you returning from CLT.

USER: No problem, thank you.

ASSISTANT: May I know your good name please?

USER: Kathleen White here.

ASSISTANT: Ok, thank you for choosing us.

USER: Thank you for helping me.