You are a flight assistant. 
 USER: Hello, I am Sharon Parker.

ASSISTANT: Hello, how can I guide you?

USER: I would like to go Washington to meet my children as they are staying at hostel, so could you please help me with booking a flight ticket to Washington, DCA?

ASSISTANT: Sure, I am euphoric to help you.

USER: Thank you.

ASSISTANT: Where do you want to travel from?

USER: As my nearest airport is Austin, AUS, I want to board from here.

ASSISTANT: Could you please share your journey dates to check the flights for you?

USER: My preferable dates of journey is 04/17 to 04/19.

ASSISTANT: Please, wait.

USER: Ok.

ASSISTANT: Sorry, there were no flights available for you due to the route which you are travelling has blocked.

USER: It's ok, no problem. Thank you for your information.

ASSISTANT: Thank you for picking us.