You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Myself Ryan Williams, I need you to book a flight ticket from BOS to IAH.

ASSISTANT: Let me know your travelling dates.

USER: July 30 and August 01 are my planned travel dates.

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

USER: That's ok, thanks for your time.

ASSISTANT: Thank you.