You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: Can you please help me to book a flight ticket?

ASSISTANT: Yes, sure. Could you please provide me your travelling dates?

USER: I want to travel in the month of June from 06/08 to 06/10 dates.

ASSISTANT: Could you please provide me your source and destination airports?

USER: Sure, my travelling locations are from AUS to DFW.

ASSISTANT: Give me a moment.

USER: Sure.

ASSISTANT: In mean while may I know your name?

USER: Sure, myself Nicholas Martinez.

ASSISTANT: There are no flights on your preferable dates.

USER: Ok, no problem. Thank you for the information.

ASSISTANT: Thank you for reaching us.