You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I am looking for a flight from AUS to LGA, can you please help me in booking a ticket?

ASSISTANT: Sure, I will help you. May I know your trip dates?

USER: My trip dates are from 03/07 till 03/09.

ASSISTANT: Please hold on for a while.

USER: Ok, take your own time.

ASSISTANT: Sorry, there is no fights found with your requirement.

USER: It's ok.

ASSISTANT: Do you have any other dates to travel?

USER: No, thank you for your concern.

ASSISTANT: Thank you for choosing us. May I know your name?

USER: My name is Samantha Martinez.

ASSISTANT: Thank you.