You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I abet you?

USER: I am Rachel Baker, I want a flight to Dallas, I planned to visit science fair with my kids. Can you help me to book a flight under fare of 200?

ASSISTANT: Sure, may I know your dates of travel?

USER: I will fly on 10/31 and return on 11/02.

ASSISTANT: Can you please share your boarding and landing points?

USER: My boarding point is NY-EWR and landing point is TX-DFW.

ASSISTANT: Do you have any connection limit?

USER: I need a single connection flight.

ASSISTANT: Please wait a moment I will check and revert you.

USER: Sure.

ASSISTANT: Sorry, there were no flights found on your specifications.

USER: Thank you for the details, I will replan my trip and get back to you.

ASSISTANT: Thank you for opting us.