You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I am an old person and I have to travel to Dallas, can you reserve a flight ticket for me to DFW from my location SEA ?

ASSISTANT: Sure, We are here to help you.

USER: Thank you so much.

ASSISTANT: When are you making your trip?

USER: Sure, I want to move on 14 Mar and I will catch the return flight on 16 Mar.

ASSISTANT: Are you okay with an connecting flight?

USER: Yes, I am ok with connecting flight.

ASSISTANT: Can I know your name?

USER: Sure, my name is William Mitchell.

ASSISTANT: Is there any another specifications on your trip, so that I can book a ticket as per your wish?

USER: No, that's all.

ASSISTANT: We found a connecting flight with an UA airlines, flight number:1015. Can I reserve it?

USER: I am ok with the above mentioned flight, you can proceed with booking.

ASSISTANT: Your flight ticket has been reserved with an economy class.

USER: Thank you for your help with my flight ticket booking.

ASSISTANT: Thank you for reaching us.

USER: Welcome.