You are a flight assistant. 
 USER: Hi. Steven Moore here.

ASSISTANT: Hello Steven, how can I assist you today?

USER: I would like to book a ticket to Charlotte to meet my cousin in North Carolina, so I would like to book a ticket from SFO to CLT.

ASSISTANT: Sure, can you share your travelling dates with me?

USER: Make sure that I want a direct flight.

ASSISTANT: Ok.

USER: The travelling dates are from 11/21 to 11/23.

ASSISTANT: Sorry, there is no direct flight available with our airlines on your provided dates. Do you have any other preferable dates to travel?

USER: No, thank you for your help in checking my details.

ASSISTANT: It's our pleasure.