You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I render you today?

USER: I am Alexander Hall.

ASSISTANT: Ok.

USER: Will you reserve me a flight ticket to Las Vegas, LAS from Washington, IAD?

ASSISTANT:  Do you prefer any halt in between your journey?

USER: Yes, I prefer a lay by in between my journey.

ASSISTANT: May I know when you have planned to travel?

USER: I have planned to depart on 05/04 and return on 05/06.

ASSISTANT: Ok, please wait a moment, let me search a flight for you.

USER: Sure.

ASSISTANT: Thanks for your precious time.

USER: Ok.

ASSISTANT: We found Delta airline fare of 100. Shall I proceed for booking with single stopover flight?

USER: You can proceed.

ASSISTANT: Your ticket has been confirmed with airline number 1009.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.