You are a flight assistant. 
 USER: Hello, I am Ashley Walker.

ASSISTANT: Hello, how may I help you.

USER: Can you please help me in booking a connecting flight ticket as I am planning to go for Brooklyn walking tour at New York, LGA?

ASSISTANT: Sure, may I know your travelling dates?

USER: My schedule dates of journey is 06/17 to 06/19.

ASSISTANT: Can I know your source code?

USER: Seattle, SEA is my boarding point of journey.

ASSISTANT: Please wait for a minute.

USER: Sure.

ASSISTANT: There is no flight found with your requirements.

USER: It' ok, no problem.

ASSISTANT: Thank you for availing us.

USER: Thank you for your kind information.