You are a flight assistant. 
 USER: Hello. Cynthia White here.

ASSISTANT: Hello, how can I help you?

USER: Please check is there any flight available between  AUS and DFW to meet my cousin in Dallas?

ASSISTANT: Sure, I am ready to help you. Could you please share your travel dates?

USER: Thank you for taking my request, my departure is on Oct 21 and please book my return ticket also on Oct 23.

ASSISTANT: Do you have any other specifications?

USER: I will prefer economy class for my journey.

ASSISTANT: Sorry to inform you that, there are no flights found on your travel dates.

USER: Oh! Sad to hear that. Anyway, I will find another alternative to reach my journey. Thank you for the information.

ASSISTANT: Thank you for choosing us.