You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: I want to travel from ATL to BOS, can you help me?

ASSISTANT: Can you please help me with your travelling dates?

USER: My travel dates are 02/01 and 02/03.

ASSISTANT: May I know your name to proceed further?

USER: I want to book a ticket in the name of Melissa Allen.

ASSISTANT: Ok. Melissa, I am sorry to inform you that there is no flight available at your requested dates.

USER: Ok. Thank you for checking.

ASSISTANT: You are welcome,. Thank you for contacting us.