You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I want to book a ticket, could you please help me in booking?

ASSISTANT: Sure, please provide your travelling details like source and destination?

USER: I want to travel from CA-OAK to NY-LGA.

ASSISTANT: OK, in which dates you are planned for the trip?

USER: My travel planned dates departure 10/01 and return 10/03.

ASSISTANT: OK, please give me a minute. I will be back with flight details.

USER: Sure.

ASSISTANT: Thank you for waiting. I am very sorry to say this, I couldn't find any flight with your required dates and locations.

USER: So sad.

ASSISTANT: May I know your good name for documentation purpose?

USER: Anyway, thank you for helping me.

ASSISTANT: Please provide your name?

USER: I am Lisa Gonzalez.

ASSISTANT: Thank you Lisa Gonzalez for contacting us. Have a good day.