You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Dorothy Edwards here.

ASSISTANT: How can I assist you today?

USER: I need your help in booking of a flight ticket from SEA to DCA for an important business meeting, can you please help me out with booking of a flight ticket on those locations?

ASSISTANT: Sure, please mention your travelling dates.

USER: I am planning to leave on 03/06 and please book my return ticket on 03/08.

ASSISTANT: Please give me a moment.

USER: Ok, take your time.

ASSISTANT: Thanks for waiting, there is no flights found under your details.

USER: Sad to hear that. Anyway, thank you for the information.

ASSISTANT: Welcome, have a great day.