You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how can I aid you?

USER: I want to book a flight ticket from SEA to St. Paul to visit my grandmother to her birthday. Can you help me in booking my flight ticket?

ASSISTANT: Ok, is there any price limit?

USER: Price limit is 200.

ASSISTANT: May I know your destination code?

USER: Destination is to MSP.

ASSISTANT: Can I have your journey dates?

USER: I want to fly on 12/01 and return on 12/03.

ASSISTANT: To proceed further, may I know your name please?

USER: I am Rachel Baker.

ASSISTANT: Sorry, there were no flights found with your given details.

USER: Ok, no issues. Thanks for the information.

ASSISTANT: Thank you for opting us.