You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: Can you help me to book a flight ticket from SEA to LGA?

ASSISTANT: Sure, can I know your trip dates?

USER: My planned travel dates are Oct, 4 and Oct, 6.

ASSISTANT: Is there any connection limit?

USER: I would prefer single connection.

ASSISTANT: Are there any other preferences?

USER: I need to return at morning time.

ASSISTANT: Can I have your good name?

USER: Justin Taylor here.

ASSISTANT: Sorry, no flights are available in this route as per your requested dates. Thank you for reaching us.

USER: Not a problem, thank you for the information.

ASSISTANT: Welcome.