You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What assistance do you expect from our travel agency?

USER: Myself Robert Perez, can you help me to book a flight ticket from DC - IAD to NY - LGA?

ASSISTANT: Sure, I am here to provide you the service. Can you please provide me your departure and arrival dates?

USER: Ok, please book for the dates 03/15 and 03/17 respectively.

ASSISTANT: Ok, please give me a minute.

USER: Ok, I will wait no problem.

ASSISTANT: Sorry to inform you, there are no flights available in this route on the dates which you have provided.

USER: That is not a problem, pleased with the search you did for me.

ASSISTANT: You are welcome. Thank you for choosing us.