You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I guide you for today?

USER: I am planning to conduct an woman empowerment event at Denver on 08/22 and my return date will be on 08/24, can you help me in booking?

ASSISTANT: Sure, I will help you about that. Can you please provide your nearest airport codes of journey?

USER: Sure, my boarding and landing airport codes are IAH and DEN.

ASSISTANT: Can you please let me know your name for booking purpose?

USER: I am Joshua Edwards.

ASSISTANT: Sorry to say this Joshua Edwards, there are no flights which travels to your region on your planned dates of journey.

USER: That's ok, I'll choose any alternative. Thank you.

ASSISTANT: You are welcome, thank you for reaching us.