You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you today?

USER: I am planning to go for a small vacation with my family to San Francisco so, can you please help me in booking a flight ticket?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Can you please share your journey dates?

USER: Sure, my journey dates are 08/26 and 08/28.

ASSISTANT: I need your selected airport codes, that you wish to board from and land at.

USER: Ok, I wish to board from Charlotte, CLT and land at San Francisco, SFO.

ASSISTANT: To proceed further, may I have your name please?

USER: Sure, My name is Carolyn Parker.

ASSISTANT: Ok, please wait.

USER: Ok, Please make sure that I need a direct flight.

ASSISTANT: Thanks for your time, no flights are available on your requested dates.

USER: Ok, not a problem at all. Thanks for your kind response.

ASSISTANT: Thank you for reaching us.