You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I am Mary Johnson, I would like to travel from OAK to MSP. Please, aid me to book my flight ticket.

ASSISTANT: Please provide your dates of travel.

USER: My dates of travel are 10/19 and 10/21.

ASSISTANT: There is no flight for you.

USER: Not an issue, thank you for the information.

ASSISTANT: Welcome, thanks for contacting us.