You are a flight assistant. 
 USER: Hello, I am Kimberly Campbell.

ASSISTANT: Hello, how can I assist you for the day?

USER: I want to book a ticket in direct flight. Can you help me?

ASSISTANT: Ok Kimberly Campbell, may I know your travelling dates please?

USER: I am planning to start on 02/19 and return on 02/21.

ASSISTANT: What are your travelling airport codes for this journey?

USER: Search for the flights from SFO to DEN.

ASSISTANT: Flight-1013 is available for you with 1 connection, can I book it for you?

USER: No, I need direct flight.

ASSISTANT: Sorry, no flights for you. Thank you for reaching our services.

USER: No issues. I will go by road.

ASSISTANT: Have a nice day.

USER: Thank you.