You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What service that you are looking from our agency?

USER: I am looking for some travelling to agency to reserve my flight ticket. So, can you please assist me in ticket booking?

ASSISTANT: Yes, you are in correct place. I am blissful to help you in flight ticket reservation.

USER: That's great to hear from your end, thank you for accepting my request.

ASSISTANT: It's alright.

USER: I am very interested in trekking. So, I would like to travel Lakefront Trail which is in Chicago ORD in my holidays. Can please find a flight and reserve a seat from SFO?

ASSISTANT: Yes, I feel happy to help you in flight ticket reservation. For searching a plane ticket, can you please help me in providing your itinerary dates of travelling?

USER: My itinerary departure date is on 08/27 and I will catch return flight ticket on 08/29.

ASSISTANT: Please give me some time, I will search a plane ticket as per your intent and I will get back to you.

USER: Sure, take your time and please provide a best flight to reach my destination region.

ASSISTANT: According to your intent, there is a flight available on your requested dates routed by AA airlines with one drop of flight. Can I proceed to confirm your ticket reservation with this flight?

USER: That's fine but I am planning to travel in a direct flight because I don't want any delays in my journey. Can you please search for that?

ASSISTANT: Ok, I will search the flight with your requirement. In the meanwhile, can I have your name for further process?

USER: Sure, my name is James Gonzalez.

ASSISTANT: Sorry for the inconvenience, all the direct flights are already reserved in this route. If you want to travel in a connecting flight, we can provide the service for you.

USER: No Thank's, I don't want any connecting flight for now. If I need any service from your agency, I will definitely contact you again.

ASSISTANT: Sorry, next time we can serve you better. Thank you for using our services.

USER: Thank you for your valuable information.