You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I am Robert Edwards, want to travel from OAK to IAD. Please help me in booking my ticket.

ASSISTANT: Can I know your travel dates?

USER: Sure, my travelling dates are from 07/17 to 07/19.

ASSISTANT: Please give me a minute.

USER: Please check the flight with 1 connection.

ASSISTANT: Sorry Robert, there is no flight available with 1 connection.

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

ASSISTANT: You are welcome.