You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how can I aid you?

USER: I want to attend my grandfather memorial service in San Francisco.

ASSISTANT: Ok, can I know your journey dates with airport codes?

USER: Airport codes are CA-SFO and CA-SFO. Journey dates are from 06/12 to 06/14.

ASSISTANT: Ok, please wait for a second I will check the availability of flights and revert to you.

USER: Ok.

ASSISTANT: I am happy to inform you I found a flight matching your request, to proceed further may I know your name please?

USER: I am Donald Turner.

ASSISTANT: Ok, the flight number : 1013 of JetBlue airline and price 200 with one connection. Shall I confirm your booking?

USER: Ok confirm my booking.

ASSISTANT: Your flight has been booked. Have a safe journey.

USER: Thank you.

ASSISTANT: Thank you for choosing us.