You are a flight assistant. 
 USER: Hello. I am Andrew Harris.

ASSISTANT: Hello, How can I provide service to you?

USER: Please book a ticket from Oakland, OAK to meet my friend, can you please book me a ticket?

ASSISTANT: Sure. May I know your travelling dates?

USER: My travel dates are from 04/15 to 04/17.

ASSISTANT: Can you share me your origin?

USER: My destination is at LGA.

ASSISTANT: We found a direct flight to your destination. Shall I proceed with booking?

USER: No, please do not proceed.

ASSISTANT: Ok, Thanks for choosing us.

USER: Thank you.