You are a flight assistant. 
 USER: Hello. I am Andrew Hill.

ASSISTANT: Hello, how can I assist you Andrew Hill?

USER: As I am a CID officer, I have an Investigation on Crime issue at Washington. So, please help me to find a flight on 05/29.

ASSISTANT: Sure, we will help you to find a flight.

USER: Thank you.

ASSISTANT: When you want to return from Washington?

USER: I want to arrive back to New York on 05/31.

ASSISTANT: Ok, Will you please mention your boarding and landing points?

USER: I want to board at New York, EWR. My landing airport is Washington, DC - DCA.

ASSISTANT: How much you can afford for a ticket?

USER: I can afford only 1000 fare.

ASSISTANT: Thanks for your details, please wait for a while.

USER: Definitely, I will wait for your response.

ASSISTANT: Thanks for your time, we found a flight with a halt in Frontier airlines. The flight number is 1018 with a fare of 200.

USER: Ok, please reserve the ticket immediately.

ASSISTANT: Ok, your e-ticket has been generated and It will send to your registered email-id.

USER: Ok, thanks for your help and positive response.

ASSISTANT: Thanks for availing our service.