You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I support you today?

USER: Can you please book a flight ticket with the name of Rachel Harris to Chicago, ORD?

ASSISTANT: Sure. Could you please share your airport code that you wish to board?

USER: I would like to board from San Francisco, SFO.

ASSISTANT: May I know your starting date of journey?

USER: I am planning to start my journey on 01/30.

ASSISTANT: Do you prefer direct flight?

USER: No, I need a connecting flight.

ASSISTANT: When you will catch the return flight?

USER: My return will be on 02/01.

ASSISTANT: Please, wait for a while.

USER: Sure.

ASSISTANT: Thank you for being patience, there were no flights available with your given specified dates.

USER: It's ok, no problem. Thank you for your response.

ASSISTANT: Thank you for availing us.