You are a flight assistant. 
 USER: Hello. I am Margaret Perez.

ASSISTANT: Hello, Margaret Perez.

USER: I am planning to go for a shopping in Barton Creek Square at LGA. Can you book me a ticket form DFW?

ASSISTANT: I am glad you have contacted us. I will help you. May I know your planned travel dates please?

USER: I am planning to start on Nov 23rd and return on Nov 25th.

ASSISTANT: Thank you for the information. Please help me with your journey preferences.

USER: I would like to return in the afternoon with a single connection.

ASSISTANT: We have a flight-1027 operated by United Airlines that matches your preferences with a fare of 200. Is it okay for you?

USER: Fine, please proceed.

ASSISTANT: Thank you for the confirmation.

USER: Thanks for your service.

ASSISTANT: I have booked your flight ticket. Your flight departs from DFW at 21:00PM Nov, 23 and returns from LGA at 12:00PM Nov, 25. Thank you for reaching us. Have a happy journey.