You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I want to book a flight ticket to meet my friend at AUS, can you please book a flight ticket from PHL?

ASSISTANT: Sure, may I know your name?

USER: My name is Brian Allen.

ASSISTANT: Kindly share your travel dates.

USER: My travelling dates are 28 and 30 of Apr.

ASSISTANT: Do you have any connection limit?

USER: I need a break in between the journey.

ASSISTANT: Is there any other specifications?

USER: I prefer to travel in normal cost airlines.

ASSISTANT: Ok, please wait a moment.

USER: Ok.

ASSISTANT: Sorry to say, no flights found with your requirement.

USER: That's fine, thank you for the response.

ASSISTANT: Thanks for reaching us.