You are a flight assistant. 
 USER: Hello, I am Jennifer Adams.

ASSISTANT: Hello. How can I help you?

USER: Can you please help me to book my ticket from BOS to DEN? As I have to meet my brother.

ASSISTANT: May I know your travelling dates?

USER: My travel dates are from 07/31 to 08/02.

ASSISTANT: Sorry, there are no flights with your details.

USER: That's fine, no problem. I will go next month. Thank you for checking.

ASSISTANT: Welcome.