You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I need you to book a flight ticket from IAH to AUS, please help me.

ASSISTANT: Sure, may I know your travel dates please?

USER: August 20 and 22, are my planned travelling dates.

ASSISTANT: Can you please share your name for documentation purpose?

USER: Melissa Moore here.

ASSISTANT: Is there any connection limit?

USER: I need a break in between my journey.

ASSISTANT: Do you have any other specifications?

USER: Nothing much to state.

ASSISTANT: Melissa Moore, there are no flights available in your route with your preferences.

USER: That's ok, thank you.

ASSISTANT: Thank you for choosing us.