You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Jason Johnson. I am planning to attend a parents meeting at PA-PHL on 03/18, Can you please help me for booking a plane reservation?

ASSISTANT: Sure, do you have any specifications?

USER: Yes, I need a halt under fare of 1000.

ASSISTANT: May I know your flying airport code?

USER: My source point is CO-DEN.

ASSISTANT: Help me with the travelling dates of journey.

USER: I would like to start on 03/17 and intend return on 03/19.

ASSISTANT: Give me a minute.

USER: Sure.

ASSISTANT: There is a flight in airline UA with fare 200. Are you comfortable with that?

USER: Yes, proceed please.

ASSISTANT: Your ticket has been booked in flight number 1000.

USER: Thanks for your information.

ASSISTANT: Thank you for opting us.