You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I be your helping hand?

USER: I am a police officer and there is a meeting for all the coordinators in mail hall which is in Las Vegas, so I have to attend the meeting. Can you please help me in flight ticket booking?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: When have you planned to travel to Las Vegas.

USER: I have planned to travel on 06/05.

ASSISTANT: Let me know your good name.

USER: My name is Kathleen Rodriguez.

ASSISTANT: Can I know your journey codes?

USER: Yes, I will prefer to depart from my nearest airport which is Oakland, OAK and my destination point is Las Vegas, LAS.

ASSISTANT: Ok, when do you want to return to Oakland?

USER: I will come back on 06/07.

ASSISTANT: Do you need any stopover in between your journey?

USER: Yes, I will prefer a stopover within my journey.

ASSISTANT: Please give me a minute, I will get back to you with flight availability.

USER: Sure, I will be waiting.

ASSISTANT: Thank you for waiting, sorry to inform you that unfortunately there is no flights available by the given details.

USER: No issue, I will choose another alternative to reach my destination. Thank you for the information.

ASSISTANT: Have a good day.