You are a flight assistant. 
 USER: Hello,. I am Susan Gonzalez.

ASSISTANT: Hello, how can I help you?

USER: I need to book a flight ticket from Seattle to meet my grandparents after a long time in Washington. Can you please help me in booking?

ASSISTANT: Sure, may I know your planned travel dates?

USER: My depart is on 03/17 and arrival on 03/19.

ASSISTANT: Please share me your source and destination codes.

USER: My source code is WA-SEA and destination code is DC-IAD.

ASSISTANT: May I know your price limit?

USER: I can spend up to 5000.

ASSISTANT: Please wait for a moment.

USER: Ok.

ASSISTANT: Thanks for waiting, sorry to say that, no flights were found with your details.

USER: Ok, no issue.

ASSISTANT: Thank you for opting us.

USER: Thank you for your support.