You are a flight assistant. 
 USER: Hi. I am Patricia Collins.

ASSISTANT: Hello, what can I do for you?

USER: I have a plan to visit Griffith observatory on 05/18 so, I need your help in booking process.

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: Can you please help me with providing your airport codes?

USER: Sure, I have chosen my source airport which is nearest to me is Denver, CO - DEN. And my destination airport is Los Angeles, CA - LAX.

ASSISTANT: Ok, Do you have any price limit?

USER: Price doesn't matter. It can be 5000 also no problem, I can spend.

ASSISTANT: Ok, may I know your travelling dates?

USER: I want to return on 05/20 and I want to start on 05/18.

ASSISTANT: Thank you for proving information.

USER: OK.

ASSISTANT: We found a direct flight. Are you comfortable to travel?

USER: No, I need a halt in between my journey to meet my friend at airport.

ASSISTANT: Sorry, we did not have any connecting flights at this moment.

USER: Ok, I will try with some other source. Thanks for the information.

ASSISTANT: Thank you for reaching us. have a great day ahead.