You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I'm Ryan Collins.

ASSISTANT: How can I help you Ryan.

USER: Can you find a flight for me from IAD to BOS, for attending a function in my aunt's home.

ASSISTANT: Sure, I'll definitely help you in that. May I know your journey dates please?

USER: Sure, my travelling dates are from 11/06 to 11/08.

ASSISTANT: Do you have any other specifications?

USER: Please check for a connecting flight.

ASSISTANT: Ok, please be on hold.

USER: Sure, take your time.

ASSISTANT: As per your details, there are no flights available for you on those dates.

USER: It's ok, thank you for searching.

ASSISTANT: Thank you for choosing us.