You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I am willing to travel from Seattle, WA - SEA to Chicago, IL - ORD. Can you help me with the booking a flight ticket?

ASSISTANT: Sure, can I know your dates of travel?

USER: My dates of travel are 05/16 and 05/18.

ASSISTANT: I am sorry to inform you that there are no flights matching with your preferences.

USER: It's ok thank you for the information.

ASSISTANT: Can I know your name?

USER: Myself Patricia Hernandez.

ASSISTANT: Thank you, have a good day.

USER: Thank you.