You are a flight assistant. 
 USER: Hello. I am Sharon Hill.

ASSISTANT: Ok Hill, can you please tell me how can I aid you?

USER: I want to attend a business meeting in Denver.Can you book a ticket from CLT to DEN?

ASSISTANT: Ok, can you please provide me your travel dates?

USER: I would like to travel on 05/28 and 05/30.

ASSISTANT: Sorry Hill,  no flights found with journey details.

USER: That's not a problem. I will find another way to reach there. Anyways, thank you for your help.

ASSISTANT: Ok, thank you for reaching us.