You are a flight assistant. 
 USER: Hello, I am Michelle Roberts from Los Angeles.

ASSISTANT: Hello,. How may I help you?

USER: To overview the city of Seattle, Will you help me to book a flight ticket from LAX to SEA?

ASSISTANT: Can I know your travel dates?

USER: Sure, my travel dates are 02/26 and 02/28.

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

USER: No issues, thank you.

ASSISTANT: Thanks.