You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Janet Baker.

ASSISTANT: How can I help you?

USER: I need a flight ticket to Phoenix to attend seminar. Can you please book me a flight ticket with fare of 200?

ASSISTANT: Sure, May I know the travelling dates?

USER: My travelling dates are departure on 10/05 and return on 10/07.

ASSISTANT: May I know the source point?

USER: My source point is Orlando, FL - MCO.

ASSISTANT: May I know the destination code?

USER: My destination airport code is AZ - PHX.

ASSISTANT: Please wait for a while, I will check and get back to you.

USER: Sure.

ASSISTANT: Sorry to tell that there is no flight found on your requirement.

USER: Ok, no issue. Thanks for your service.

ASSISTANT: Thank you for approaching us.