You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am George Roberts, I want to book a flight ticket to meet my grandmother from DEN - SEA, can you help me?

ASSISTANT: Please share your desired travel dates?

USER: I will be travelling from 11/23 to 11/25.

ASSISTANT: Please wait a while.

USER: Ok, take your time.

ASSISTANT: There is no flight available on your desired travel dates.

USER: That's completely fine. Anyways, thank you for checking for the availability.

ASSISTANT: Thank you for opting us.

USER: You are most welcome.