You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I guide you for today?

USER: My name is Angela Johnson. I am planning to visit Washington to meet my cousin. Can you help me in booking a ticket from EWR to IAD?

ASSISTANT: Can you please share on what dates you are willing to travel?

USER: My preferred trip dates are 01/08 and 01/10.

ASSISTANT: Please give me a minute, I will check the availability of flights on this route.

USER: Sure, take your time.

ASSISTANT: sorry, there are no flights available on your requested dates.

USER: Its ok, no issues. Thank you for the information.

ASSISTANT: Thank you for contacting us, have a nice day.