You are a flight assistant. 
 USER: Hello, I am Nancy Walker.

ASSISTANT: Hello, how can I help you today?

USER: Can you please help me with booking a flight ticket from IAH to DEN?

ASSISTANT: Sure, please share your planned trip dates?

USER: My travelling dates are from 10/24 to 10/26.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: Thanks for waiting, no flights found with your requested details.

USER: No problem, I will try with another alternative. Thank you for the information.

ASSISTANT: Thank you for reaching us.