You are a flight assistant. 
 USER: My name is Raymond Hills.

ASSISTANT: Hello Raymond, how may I assist you?

USER: I want to travel from SEA to ORD, could you help me in booking a ticket?

ASSISTANT: Sure, may I know dates of travel please?

USER: Yes, my dates are 09/22 and returns on 09/24.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Sorry, there is no flight found as per your details.

USER: Ok, thank you for providing your information.

ASSISTANT: Thank you, for contacting us.

USER: Thank you.