You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I render you today?

USER: I am planning to visit Washington IAD from LAX. Can you find a flight ticket for me?

ASSISTANT: Sure, we are here to help you, when you are planning to make your journey?

USER: My planned trip dates are on Nov 28 and return on Nov 30.

ASSISTANT: May I know your name please?

USER: Ok, I am Jack Phillips.

ASSISTANT: In which class you prefer to travel?

USER: Ok, I need a single connecting flight to travel.

ASSISTANT: Is there any more preferences?

USER: No.

ASSISTANT: We found a connecting flight with Delta airlines, flight number 1001, price is 100 in economy class. Shall I proceed?

USER: Please go ahead with the ticket booking.

ASSISTANT: Your ticket has been reserved.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.