You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I am Joseph Green, want to travel from DCA to BOS. Please help me in booking my ticket.

ASSISTANT: Sure, may I know your trip dates?

USER: Sure, my travelling dates are from 08/26 to 08/28. Please check the flight with 1 connection.

ASSISTANT: Ok, please wait a minute.

USER: Sure.

ASSISTANT: Sorry, there is no reservation found under your name.

USER: It's ok, thank you for your help.

ASSISTANT: Most welcome.