You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Myself Margaret Thompson, I am planning my holiday trip to travel Los Angeles. Can you please help me in reserving the ticket from DEN to LAX?

ASSISTANT: Sure, may I know your planned travel dates?

USER: I am willing to leave on May 14th and again I will return back on May 16th.

ASSISTANT: Do you need a halt in between your journey?

USER: I prefer for single connection flight.

ASSISTANT: Do you have any other specifications?

USER: My airlines preference is normal cost.

ASSISTANT: Please wait for a moment.

USER: Ok, I will wait for your response.

ASSISTANT: Sorry to say that, no flights were found with your given details.

USER: Not a big problem, anyway thank you very much for your service.

ASSISTANT: Thank you for reaching us.