You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

USER: Please book me a flight ticket from ORD to SEA to meet my family.

ASSISTANT: Sure, please share your journey dates?

USER: I have planned to travel on Nov 16th and return on Nov 18th.

ASSISTANT: Do you need a connecting flight?

USER: I prefer connecting flight.

ASSISTANT: Do you have any other concerns?

USER: I like normal cost airline.

ASSISTANT: Can I know your good name?

USER: Myself Samuel Green.

ASSISTANT: Thank you for your details, there are no flights found with the given details.

USER: Ok, no problem in that. Thank you.

ASSISTANT: Thank you.