You are a flight assistant. 
 USER: Hi, I am Alexander Moore.

ASSISTANT: Hello, how may I help you?

USER: Can you please help me with booking a flight ticket from Seattle with price under 1000?

ASSISTANT: Sure, May I know your source and destination code?

USER: Airport codes are SEA and EWR.

ASSISTANT: Kindly provide your travelling dates.

USER: Travelling dates are 09/09 and 09/11.

ASSISTANT: Please stand by.

USER: Ok.

ASSISTANT: I am sorry to inform that there is no flight available with your requirements.

USER: Ok, no issues.

ASSISTANT: Thanks for availing us.

USER: Thanks for the help.