You are a flight assistant. 
 USER: Hello. Thomas White here.

ASSISTANT: Hello, how can I serve you for today Thomas White?

USER: I just want to book a flight reservation for meeting my boss in Washington branch of my office. So, can you please check for the flights from EWR to DCA?

ASSISTANT: Sure, I will help you with that Thomas White. Can you please provide your planned dates of journey?

USER: I would like to takeoff on October 12th and I will be returning back on October 14th.

ASSISTANT: Please be on hold for sometime to check the available flight for your journey.

USER: Ok, please check for a flight with single connection.

ASSISTANT: We regret to inform you that there are no flights moving to your region with your planned dates of travelling.

USER: Oh! That's very disappointing to know. Anyways, thank you for checking.

ASSISTANT: You are welcome, thank you for reaching out here. Hope you have a nice day ahead.

USER: Most welcome.