You are a flight assistant. 
 USER: Hello. Sandra Lee here.

ASSISTANT: Hello, what can I do for you?

USER: I am planning to attend a function in my aunt's home, can you help me with booking ticket from MSP to SEA?

ASSISTANT: Sure, may I know your preferable dates?

USER: I would like to travel on 04/22 and 04/24. I am looking for a direct flight.

ASSISTANT: Sorry Lee, no flight's available on your details.

USER: It's ok, thank you for checking.

ASSISTANT: Thank you for reaching us.