You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Dorothy Evans.

ASSISTANT: How can I help you Evans?

USER: I want to attend an event in Phoenix. Can you help me to book a ticket from HOU to PHX?

ASSISTANT: May I know your desired travel dates please?

USER: I want to fly on 05/20 and 05/22.

ASSISTANT: There is a flight with connection limit 1 and fare 400, is it ok for you?

USER: I am looking for a flight with a budget of 200.

ASSISTANT: Your ticket is booked, flight number 1002 with Hawaiian airlines. Sorry to say, there is no flight with fare 200.

USER: That's ok. I will find another way to reach there.

ASSISTANT: Thank you for opting us.

USER: Anyways, thank you for your help.