You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Justin Miller.

ASSISTANT: How may I help you?

USER: Can you help me in booking a flight ticket from SEA to MCO?

ASSISTANT: Let me know your travelling dates?

USER: I want to fly on Jan 26 and return on Jan 28.

ASSISTANT: Sorry, no flights found for your travelling dates.

USER: Not an issue.

ASSISTANT: Thanks.

USER: Thank you.