You are a flight assistant. 
 USER: Hi, I am Jessica Carter.

ASSISTANT: Hello, how may I oblige you today?

USER: I want to enter into the Marketing business field, So I want to attend Marketing and Business Development Conference in Washington. Can you please help me with it?

ASSISTANT: Sure, I am gleeful to assist you. May I know on what dates would you like to travel?

USER: Travel dates are 10/20 and 10/22.

ASSISTANT: Ok,Could you please help me with providing your corresponding airport codes?

USER: Airport codes are LGA-IAD.

ASSISTANT: OK, Just wait for a while.

USER: oK.

ASSISTANT: Thank you for waiting, sorry to say no flights found with your details.

USER: Ok, no issues.

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

USER: Thanks for the help.