You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I guide you today?

USER: I would like to travel to AUS for business trip, can you please reserve a flight ticket from LGA?

ASSISTANT: Sure, I will help you with that, May I know your travelling dates please?

USER: Sure, my planned travelling dates are Nov, 19 and 21 respectively.

ASSISTANT: Do you have any class preference?

USER: I am comfortable to travel in any class.

ASSISTANT: Can I know your connection limit?

USER: Yes, I am comfortable with single connection.

ASSISTANT: Is there any other requirements regarding your journey?

USER: Yes, I would like to fly in normal cost airline.

ASSISTANT:  May I know your name please?

USER: Sure, my name is Anthony Harris.

ASSISTANT: Sorry to inform you that, there are no flights found on this route as per your details.

USER: Ok, not an issue.Thank you for your information.

ASSISTANT: Thank you for reaching us, have a great day.