You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: My name is Patrick Hall. I have a business meeting in Denver. Can you help me for booking?

ASSISTANT: Sure, I will help you in booking. Can you please tell me your travel dates.

USER: Sure, my travelling dates are from 10/18 till 10/20.

ASSISTANT: Kindly share your airport codes?

USER: My travelling airport codes are from LAX to DEN.

ASSISTANT: Here, I found a direct flight for you. Is it ok for you?.

USER: No, please search a flight with single connection.

ASSISTANT: Sorry, no flights are found with single connection.

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

ASSISTANT: Thank you for reaching us.