You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I render you?

USER: Samantha Allen here. I would like to surprise my parents by going home, so could you please reserve a seat in a flight which is going to Washington?

ASSISTANT: Ok. Kindly, mention your source and destination airport code.

USER: Sure, it's from MSP to IAD.

ASSISTANT: When you will start your journey?

USER: I will depart on 02/25.

ASSISTANT: Kindly, mention your return date.

USER: I will be back on 02/27.

ASSISTANT: No flights found on your journey dates.

USER: No problem, thank you.

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