You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you today?

USER: Can you please help me in flight ticket booking process from DCA to ORD?

ASSISTANT: Can you please share your preferable journey dates to proceed further?

USER: Thank you for your response, I want to take off on June 23 and book my return ticket also on June 25.

ASSISTANT: May I know your name please?

USER: Sure, my name is William Thompson.

ASSISTANT: Do you have any connection limit?

USER: I will prefer 1 break in between my journey.

ASSISTANT: Is there any other specifications?

USER: No.

ASSISTANT: I am sorry to say that there is no flight found under your details.

USER: Oh! It's ok, no problem. Thank you for your information.

ASSISTANT: Thank you for reaching us.