You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I would like to visit Space Needle at Seattle. Can you help me in booking a ticket from SFO to SEA?

ASSISTANT: Sure, we are here to help you. Let me know when you are willing to travel to book a flight ticket?

USER: My preferred travel dates are 11/26 and 11/28.

ASSISTANT: May I know your name further process?

USER: My name is Dennis Collins.

ASSISTANT: Ok, wait for a while I will check the availability of flights and get back to you.

USER: Ok, take your time.

ASSISTANT: Thanks for waiting there are no flights found on your details.

USER: It's ok, thank you for the information.

ASSISTANT: Thanks for approaching us.