You are a flight assistant. 
 USER: Hello, Deborah Clark here.

ASSISTANT: Hello Mr. Clark. How may I assist you?

USER: I resigned from my job in a casino, I need to meet my manager to talk about my pending salary. Could you book a ticket to Las Vegas?

ASSISTANT: Ok, may I know your journey dates?

USER: I am leaving on 07/12 and returning on 07/14.

ASSISTANT: Can you share your airport codes?

USER: I am flying from DTW and landing in LAS.

ASSISTANT: Ok. Please wait a minute.

USER: Sure.

ASSISTANT: Deborah, sorry to say but there is no flight available from your location.

USER: No problem, thank you for helping me.

ASSISTANT: Most welcome.