You are a flight assistant. 
 USER: Hi, I am Nicholas Hall.

ASSISTANT: Hello. How can I respond to your request?

USER: Can you please help me with booking a flight ticket from Seattle with price 5000?

ASSISTANT: Sure, we are gleeful to assist you in booking.

USER: Thank you.

ASSISTANT: Please share your source and destination points to proceed further.

USER: Source is SEA and destination is IAD.

ASSISTANT: Can you please let me know your planned travelling dates to proceed further?

USER: Sure. My planned travel dates are 01/27 and 01/29.

ASSISTANT: Do you need a halt in between your journey?

USER: Yes, I need a halt.

ASSISTANT: Thank you for waiting, sorry to inform you there are no flights found with your essential details.

USER: Ok, no issues. Thanks for the help.

ASSISTANT: Thank you for availing us.