You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Carolyn Wright here.

ASSISTANT: How can I assist you?

USER: Can you check once is there any flight available from PHL to SEA?

ASSISTANT: Sure Wright, can I know the travel dates please?

USER: My travelling dates are from 04/18 to 04/20.

ASSISTANT: Ok, wait a moment please.

USER: Ok.

ASSISTANT: Sorry, there are no flights on your dates.

USER: It's ok. Anyway, thank you for your help.

ASSISTANT: Thank you for approaching us.