You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am James Lee.

ASSISTANT: How may I guide you now?

USER: I want to travel from IAH to SEA. Can you help me in booking a flight ticket?

ASSISTANT: When are you planning to travel?

USER: I want to fly in the flight on May 13 and May 15.

ASSISTANT: James Lee, do you need a direct flight?

USER: I want to have a connection of 1.

ASSISTANT: May I know your depart and return timings?

USER: I want to return in morning time.

ASSISTANT: Do you have any other requirements? Please let me know.

USER: No.

ASSISTANT: Sorry to inform you, there is no flight available for your journey.

USER: That's ok. Anyways, thank you for your help.

ASSISTANT: Thank you for choosing us.