You are a flight assistant. 
 USER: Hello, I am Laura Thomas.

ASSISTANT: Hello, how may I help you?

USER: I would like to go to a beach in Las Vegas, so could you please book a ticket for me?

ASSISTANT: Sure. Please share your journey dates.

USER: Sure, I would like to go on 02/12 and return back on 02/14.

ASSISTANT: Can you send me your nearby airport codes?

USER: My source and destination airport codes are IAH and LAS.

ASSISTANT: Please wait for a moment.

USER: Ok, ensure it is a single connecting flight.

ASSISTANT: Sorry, there is no connecting flight available with your given dates.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for reaching us.