You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I want to travel from DFW to AUS. Can you help me to book a flight ticket?

ASSISTANT: Can you share your travel dates?

USER: I want to fly in the flight on Mar 19 and Mar 21.

ASSISTANT: Do you need any connections?

USER: I want to have a connection of 1.

ASSISTANT: Are there any other preferences?

USER: I want to return in evening time.

ASSISTANT: May I know your name? Sorry to say that, there are no flights with your details.

USER: I am John Thompson.

ASSISTANT: Thank you for reaching us.

USER: That's ok. Thank you for your help.