You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Emily White.

ASSISTANT: How may I guide you today?

USER: Can you please guide me in booking my flight ticket to AUS from LGA and I need to have a return flight in afternoon?

ASSISTANT: Sure, I will help you with that. Can you please share your preferable journey dates?

USER: Thank you, my journey dates are Apr 14 and Apr 16.

ASSISTANT: Do you have any specifications?

USER: Yes, I need a connecting flight in an economy class.

ASSISTANT: I am sorry to say that there is no flight found under your details.

USER: Not a problem, anyways thank you for the information.

ASSISTANT: Thank you for reaching us.