You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Michael Garcia.

ASSISTANT: Michael Garcia, how may I assist you today?

USER: Can you help me in booking from BOS to DEN, as there is business meeting to attend?

ASSISTANT: Sure, I will help you.

USER: Ok.

ASSISTANT: Please let me know with your planned travel dates.

USER: My trip dates are May 23 to May 25.

ASSISTANT: May I know if you have any other preferences with respect to your journey please?

USER: I need a connecting flight.

ASSISTANT: I am sorry to inform you that there is no flight available for your journey.

USER: No issue, thank you.

ASSISTANT: Thank you for understanding. Thank you for reaching us. Have a great time.