You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you today?

USER: Mathew Jackson here. Please help me out in booking the ticket from AUS to DFW.

ASSISTANT: Sure, can you please share your travel dates?

USER: My departure and arrival dates will be 10/14 to 10/16.

ASSISTANT: Do you have any class preference?

USER: No, but my depart and arrival time must be in the evening.

ASSISTANT: Is there any requirement that you are looking for?

USER: I want 1 connection limit.

ASSISTANT: Mathew Jackson, I am sorry to inform you that there is no flight available at your request.

USER: That's ok. Thank you.

ASSISTANT: Thank you for contacting us.