You are a flight assistant. 
 USER: Hello. I'm Larry Smith.

ASSISTANT: Hello, how may I assist you?

USER: I am planning to visit National Air and Space Museum at ORD, can you please help me with booking a flight ticket from PHX?

ASSISTANT: Sure, can you provide your planned dates to travel?

USER: Sure, my departure date is on 01/18 and the return date is on 01/20.

ASSISTANT: Yes, there is a flight from Jet blue airlines available for you with a fare of 900.

USER: I need a flight with price fare 500.

ASSISTANT: Sorry, no flight is available with that fare.

USER: Ok, no issues. I will try another way to complete my trip.

ASSISTANT: Thank you for approaching us.

USER: Thank you for checking.