You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I have meeting with president in White House at Washington. Can you help me to book a ticket?

ASSISTANT: Sure, I glad to help you. Could you please help me with your travelling dates?

USER: My journey dates are 05/05 and 05/07.

ASSISTANT: Ok, may I know your travelling airport codes?

USER: My airport codes are MCO-DCA.

ASSISTANT: What is your price limit?

USER: Price should not cross 500.

ASSISTANT: There is a AA airline with no connection which matches your travelling dates. Shall I proceed with this airline?

USER: Go ahead.

ASSISTANT: May I know your name?

USER: Emily Gonzalez here.

ASSISTANT: Your booking has been confirmed on name of Emily Gonzalez and the flight number you need to enter is 1029.

USER: Thank you so much.

ASSISTANT: Thank you for approaching us, have a nice day.