You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Linda Edwards. I want a direct flight to SEA from my hometown ORD. Can you help me?

ASSISTANT: Can you please tell your travelling dates?

USER: Ok, my starting date is 05/07 and the return is 05/09.

ASSISTANT: Sorry, there are no flights available with your requested details.

USER: Ok, that is sad to hear. Please inform me with there is any flight available.

ASSISTANT: Sorry all flights are booked.

USER: Ok, thank you for the information.

ASSISTANT: Thank you and have a nice day.