You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I serve you?

USER: I am planning to go for Grand Canyon Adventure at San Francisco, can you please help me in booking?

ASSISTANT: Sure, can you please help me with your journey dates?

USER: My planned dates of travel are from 12/12 to 12/24.

ASSISTANT: May I know your airport codes?

USER: My airport codes are from CA-LAX to CA-SFO.

ASSISTANT: May I know your name?

USER: I am Margaret Gonzalez.

ASSISTANT: Thank you for your details. Sorry, we did not found any flights on your given details.

USER: Ok, thank you for your information.

ASSISTANT: Thank you for reaching us.