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

ASSISTANT: Hello, how can I helpful to you?

USER: I need to schedule my trip on dates from 02/17 to 02/19 as I have a match in between these dates. Please book me a ticket.

ASSISTANT: Sure, may I know your airport codes?

USER: my origin is New York, NY - EWR and destination is Phoenix, AZ - PHx.

ASSISTANT: Is there any price limit?

USER: Yes, it must be under 1000.

ASSISTANT: There is a flight found with the fare of 200 from an UA airline and the flight number is 1020.

USER: Great, please book my ticket.

ASSISTANT: Your flight booking is confirmed with connecting flight.

USER: Thanks for your service.

ASSISTANT: Thanks for contacting us.