You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I guide you today?

USER: I need to travel from AUS to LGA, can you help me?

ASSISTANT: Sure, I am glad to help you. May I know your good name please?

USER: I am Donald Thompson.

ASSISTANT: Ok, help me with your planned dates.

USER: My travel dates are 04/28 and 04/30.

ASSISTANT: How many connections you require in your journey?

USER: I need a single connecting flight.

ASSISTANT: Do you have any other concerns?

USER: No.

ASSISTANT: Sorry to say that, no flights are found based on your information.

USER: That's ok. Thank you.

ASSISTANT: Thank you for choosing us.