You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I'm Brandon Harris, and I want to travel from CA-SFO to LAS.

ASSISTANT: Ok, can I know your travel dates?

USER: Sure, my dates of journey is from 08/06 to 08/08.

ASSISTANT: Ok, wait for a while.

USER: Sure.

ASSISTANT: Your requirement dates did not match with any of our flights. Would you like to know any thing else?

USER: Oh! It sounds bad for me. Thank you, for your information.

ASSISTANT: Thanks for reaching us.