You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am looking for a direct flight from Austin. Please help me in booking a ticket.

ASSISTANT: Sure, may I know your airport codes please?

USER: The respective airport codes are AUS and LGA respectively.

ASSISTANT: Please share your journey dates.

USER: My planned journey dates are 07/17 and 07/19.

ASSISTANT: Can I have your name please?

USER: My name is Ashley Wilson.

ASSISTANT: Ashley, no flights has been found on your request.

USER: Its ok, thank you for the information.

ASSISTANT: Thank you for choosing us.