You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How can I assist you today?

USER: I am Susan Collins.

ASSISTANT: Ok.

USER: I want to book a ticket to San Francisco to meet my friends, can you please help me in booking?

ASSISTANT: Sure, I will help you in this.

USER: Thank you.

ASSISTANT: Please share the boarding airport code.

USER: I would like to board from IL-ORD.

ASSISTANT: May I have your travelling dates, please?

USER: My travel dates are from 02/20 to 02/22.

ASSISTANT: Ok. Can I have your San Francisco airport code?

USER: My destination code is CA-SFO.

ASSISTANT: Please hold on for a while.

USER: Ok.

ASSISTANT: Thanks, there is a connecting flight, 1017 flight number, Frontier airline. Shall I proceed to book with a fare of 100?

USER: You can proceed.

ASSISTANT: Your ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you.