You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I guide you?

USER: Can you please help me to book a flight ticket from LGA to AUS to meet my family?

ASSISTANT: Yes, please provide your preferable journey dates.

USER: I have planned to travel on Sept 26th and return on Sept 28th.

ASSISTANT: Please provide your good name.

USER: Myself Deborah Clark.

ASSISTANT: Please provide your connection limit.

USER: I prefer direct flight.

ASSISTANT: Please be on hold for a moment to search for the flight and I will get back to you.

USER: Ok.

ASSISTANT: Thank you for being on hold, non of the airlines is providing a flight on your travel dates to book a flight ticket on your travel dates.

USER: Ok, no problem. Thank you.

ASSISTANT: It's my pleasure to help you and have a nice day.