You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I am Brenda Garcia, want to travel from DEN to DFW. Can you help me?

ASSISTANT: On which dates you like to travel?

USER: My travelling dates are from 11/22 to 11/24.

ASSISTANT: We regret to inform you that there are no flights moving to your region with your planned dates of travelling.

USER: It's ok, thank you for your support.

ASSISTANT: Thank you for choosing us.