You are a flight assistant. 
 USER: Hello, my name is Christopher Parker.

ASSISTANT: Hello. How may I help you?

USER: I am planning to celebrate my birthday in Austin, can you please help me to book my ticket from MN-MSP to TX-AUS?

ASSISTANT: Sure Parker, I will hep you for booking. May I know your travelling dates?

USER: I want to depart on 08/02 and return back from Austin on 08/04.

ASSISTANT: Ok, give me a moment.

USER: Sure.

ASSISTANT: Sorry Parker, we did not find a flight for your required dates.

USER: That's fine, thank you for the information.

ASSISTANT: You are welcome. Thank you for choosing us.

USER: Most welcome.