You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I am Brenda Brown. I want to book a ticket from LGA to DFW, help me to make a reservation?

ASSISTANT: Sure, when are you willing to fly?

USER: I want to fly on 02/10 and return on 02/12.

ASSISTANT: Ok, any other requirements?

USER: I need single connection.

ASSISTANT: Ok, no flights found with your given details.

USER: Ok, thank you.

ASSISTANT: Thank you for opting us.