You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I support you for today.

USER: I am Raymond Thompson, want to book a flight ticket to Las Vegas with single connection. Could you help me with?

ASSISTANT: Ok, could you please provide your travelling dates?

USER: My travel dates are 08/07 to 08/09.

ASSISTANT: Ok, please mention your journey codes.

USER: Journey codes are DTW-LAS.

ASSISTANT: Sorry to say, there are no flight with your requirements.

USER: Ok, no issues.

ASSISTANT: Thanks for connecting with us, have a pleasant day.

USER: Thank you.