You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I support you now?

USER: Can you please book a flight ticket from LAX to IAD?

ASSISTANT: Sure, please share me your connection limit?

USER: I would like to return in morning time so please make sure that.

ASSISTANT: May I know your planned journey dates?

USER: Sure, I have planned my travel dates as Dec 31 and Jan 02.

ASSISTANT: Do you have any other requirement?

USER: I am looking for direct flight so please make sure that.

ASSISTANT: May I know your good name please?

USER: Sure, myself Stephen Davis.

ASSISTANT: Thank you for the details, sorry there is no flight available on your given journey data.

USER: Oh! It is sad to hear. Anyway, thank you for your time.

ASSISTANT: Thank you for visiting us, we hope see you again.

USER: Most welcome.