You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you at this moment?

USER: Please help me to book a flight ticket from LAX to DFW?

ASSISTANT: May I know your planned dates to travel?

USER: My journey dates are Feb 11 and Feb 13.

ASSISTANT: Is there any connection limit?

USER: I need a connecting flight.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: Can you please help me with your good name?

USER: I am Nancy Wilson.

ASSISTANT: There were no flights found with your required dates to travel.

USER: No problem, thank you for your information.

ASSISTANT: Thank you for choosing us.