You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I serve you?

USER: I have planned to go for Shopping to Seattle, WA - SEA. Can you please make a plane reservation on the name of Kimberly Thomas?

ASSISTANT: Sure, May I know the source code?

USER: My origin is Oakland, CA - OAK.

ASSISTANT: Please help me with your travel dates.

USER: I will depart on 03/20 and return on 03/22.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Sorry, No flights found with your chosen dates.

USER: Ok, no worries. Thank you.

ASSISTANT: Thank you for opting us.