You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. In what way I be your helping hand?

USER: I have planned my trip to New York to visit Central park. Will you help me in booking a ticket with the fare of 200?

ASSISTANT: Sure. May I know your journey details?

USER: My travel dates are from 08/26 to 08/28. My airport codes are ORD and LGA.

ASSISTANT: Thanks for your details. Please standby, mean while let me know your name for booking a ticket.

USER: Ryan Taylor is my name.

ASSISTANT: Thanks for waiting. Ryan Taylor, there was no flight that matches with your information.

USER: It's ok. Thank you for the response.

ASSISTANT: Thank you for contacting us.