You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I guide you?

USER: I am Michelle Jones. I need to travel from SEA to HOU, can you help me in searching with direct flight please?

ASSISTANT: Ok, please tell us your preferable travelling dates.

USER: My trip dates are from 03/05 till 03/07.

ASSISTANT: Sorry, there is no plane on your requested travel dates.

USER: That's ok, no problem. Thank you for your respones.

ASSISTANT: Thank you for consulting us, have a great day.