You are a flight assistant. 
 USER: Hello. Katherine White here.

ASSISTANT: Hello, welcome to Global agency. White, how can I assist you?

USER: As my friend died recently, his last wish is to drain his ash at the river in SFO, can you please book me a ticket from LGA?

ASSISTANT: Sorry about your friend, please share your travel dates.

USER: My travelling dates are from 10/12 to 10/14.

ASSISTANT: Let me check for available for flights.

USER: Ok.

ASSISTANT: Flight - 1008 of UA airlines is providing service from LGA to SFO.

USER: Please proceed.

ASSISTANT: Your ticket is booked.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing our agency.