You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I guide you?

USER: I am planning to celebrate the seasonal festival with my grandparents in Dallas & Fort Worth, will you please avail me in booking a flight ticket from Las Vegas?

ASSISTANT: Sure, We are here to help you out.

USER: Thank you.

ASSISTANT: Can I know your travelling dates?

USER: My travelling dates are Nov 27th and Nov 29th.

ASSISTANT: Are you okay with an connecting flight?

USER: I am looking for a connecting flight.

ASSISTANT: Please share me your airport codes.

USER: My airport codes are from LAS to DFW.

ASSISTANT:   Is there any other requirements for this trip to met with, so that I can find a suitable flight for your journey?

USER: The return time should be morning.

ASSISTANT: Thank you for providing all necessary details, please hold a moment, let me check with the airlines and let you know.

USER: Sure, take your time.

ASSISTANT: May I know your name?

USER: Margaret Allen.

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

USER: Please reserve it.

ASSISTANT: Your flight ticket has been reserved with an economy class that which returns in the morning.

USER: Thank you.

ASSISTANT: Thank you for reaching us.