You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I serve you?

USER: This is Robert Martinez.

ASSISTANT: Thanks for providing your name.

USER: Can you help me in booking a flight ticket from IAD to DFW?

ASSISTANT: Sure, I am here to help you. Can you please provide me your schedule dates?

USER: My schedule dates are 05/08 to 05/10.

ASSISTANT: OK, please wait a moment.

USER: Take your time.

ASSISTANT: Thanks for you waiting, there is a flight with direct connection and fare is 100.

USER: But I need with 1 connection.

ASSISTANT: Sorry no flights are available for one connection.

USER: OK. Thank you.

ASSISTANT: Thank you, have a nice day.