You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I am Ashley Rodriguez, I need a flight to attend a lunch at my friend house. Can you find a flight with one connection?

ASSISTANT: Sure, we will help you for booking with a connected flight. Can you please share your journey dates?

USER: I need a return ticket on 04/20 and departing on 04/18.

ASSISTANT: Ok, kindly mention your airport codes.

USER: My destination is Seattle WA-SEA and source is San Francisco CA-SFO.

ASSISTANT: Thanks for your details, please wait.

USER: Sure.

ASSISTANT: Sorry to say that, we did not find any flights according to your specified details.

USER: Ok, thanks for helping me.

ASSISTANT: Thank you for contacting us.