You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I serve you today?

USER: Myself Larry Wright. One of my friend is hospitalized and I need to see him, so please book me a flight ticket on 09/24 along with a return ticket on 09/26.

ASSISTANT: Sure, kindly mention your airport codes?

USER: I am going for a round trip to San Francisco, SFO.

ASSISTANT: Ok, please wait a moment.

USER: Ok.

ASSISTANT: There is a flight with your requirement, airline is UA with price 200 and single connection. Shall I proceed with booking?

USER: Great, please book it for me.

ASSISTANT: Your booking is done and flight number is 1003.

USER: Thank you for your prompt service.

ASSISTANT: Thanks for reaching us, have a good day.