You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Myself Samantha Mitchell. Can you please help me in booking a flight ticket from IAH to IAD locations?

ASSISTANT: On which dates you are wiling to travel?

USER: My travelling dates are from 05/06 and 05/08.

ASSISTANT: There is no flights available.

USER: It's ok. Thank you for the information.

ASSISTANT: Most welcome.