You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Gregory Mitchell.

ASSISTANT: How may I aid you?

USER: I have a corporate meeting to organise at Washington. Can you please find any flight available to Washington?

ASSISTANT: Ok, may I know your trip dates?

USER: I am planning my journey on dates 01/11 and 01/13.

ASSISTANT: Can you tell me your airport codes?

USER: The respective airport codes are PHL and IAD.

ASSISTANT: There is a flight for you with 1 connection in Southwest airline and fare is 100. Shall I proceed?

USER: Please proceed for booking the ticket.

ASSISTANT: Your ticket is booked.

USER: Thank you for your service.

ASSISTANT: Most welcome.