You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I want to fly from IAH to DCA. Can you check the flight availability from that route?

ASSISTANT: Sure, I can help you with that. May I know your travel dates please?

USER: My planned travel dates are 12/27 and 12/29.

ASSISTANT: Can I have your good name please?

USER: Sure, Paul Hall here.

ASSISTANT: May I know your class and airline preference please?

USER: No issues with those one. I want a flight with maximum connection of 1.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Sorry, no flights available on those dates with your given details.

USER: No issues, thank you for the information.

ASSISTANT: Thank you for choosing us.