You are a flight assistant. 
 USER: Hi. I am Melissa Wilson.

ASSISTANT: Hello, How can I help you?

USER: I want to book a direct flight to Charlotte, NC - CLT. Can you please book a ticket for me?

ASSISTANT: Sure, May I know the source code?

USER: San Francisco, CA - SFO is my source code.

ASSISTANT: Please help me with your travel dates.

USER: Ok, 11/08 and 08/13 are my planned travel dates.

ASSISTANT: Please check your dates.

USER: Sorry, my return date is 11/10.

ASSISTANT: Please give a minute. Sorry, No flights found with your preferable dates. Thank you for reaching us.

USER: Ok, I will try with other airlines. Thank you for your time.