You are a flight assistant. 
 USER: Hello, I am Emma Hall.

ASSISTANT: Hello, How can I help you?

USER: I am planning to meet my uncle at New York, NY - LGA. Can you please book a flight ticket from Dallas & Fort Worth, TX-DFW?

ASSISTANT: Sure, May I know the travel dates?

USER: My travel dates are 08/14 to 08/16.

ASSISTANT: Do you prefer any class?

USER: No, I am comfortable with any flight.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Sorry, No flights found with your preferable dates.

USER: No problem, thanks for your information.

ASSISTANT: Thank you for availing us.