You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I am looking for a flight from HOU to OAK, can you help me out?

ASSISTANT: Sure, I am here to help you in booking. Can you please share your travel dates?

USER: Sure, my trip dates are from Jan 8th till Jan 10th.

ASSISTANT: Ok, may I know your name?

USER: Myself Frank Baker.

ASSISTANT: Sorry, no flights are available on your preferable travel dates.

USER: That's ok, not an issue. Thank you for your information.

ASSISTANT: Thank you for reaching us, have a nice day.