You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: David Carter here.

ASSISTANT: How can I help you today?

USER: I would like to book a ticket from AUS to MSP, can you please help me with that?

ASSISTANT: Sure, we are gleeful to help you. When are you willing to travel?

USER: The travel dates are from 04/22 to 04/24.

ASSISTANT: Is there any connection limit for you?

USER: I need a flight with 1 connection limit.

ASSISTANT: Do you have specific depart and arrival timings for this trip?

USER: My depart and return time is at morning.

ASSISTANT: May I know your class preference?

USER: No.

ASSISTANT: Kindly mention your airline preference.

USER: No.

ASSISTANT: Thanks for providing details, we are unable to provide flights on your journey routes based on your requirements.

USER: That's ok, thank you for your help.

ASSISTANT: Thank you for opting us.