You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, How can I serve you?

USER: I am Benjamin Miller. I want to travel from New York, JFK to Seattle, SEA.

ASSISTANT: Sure, May I know the journey dates?

USER: I want to travelling on 01/31 and 02/02.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Sorry, No flights found with your preferable dates. Thank you for reaching us.

USER: Okay, thank you for your service.