You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: My name is Jacob Johnson. I have a business meeting in Denver, can you help me for booking a flight ticket from HOU to DEN?

ASSISTANT: Sure, I will help you. May I know your planned travel dates please?

USER: My travelling dates are July 03 and July 05.

ASSISTANT: Do you need a connecting flight?

USER: I need a single connecting flight.

ASSISTANT: May I know your specific timings of your journey?

USER: My departure time is afternoon and my return time is evening.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Jacob Johnson, no flights has been found on your specifications.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for approaching us.

USER: Welcome.