You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Anna Walker.

ASSISTANT: How can I assist you?

USER: There is a meeting with my client in Chicago, so I want to book a ticket from San Francisco.

ASSISTANT: Sure, please share your travel dates.

USER: I am departing on 04/29 and return on 05/01.

ASSISTANT: May I know your airport codes?

USER: My departure airport is SFO and destination airport is ORD.

ASSISTANT: The flight 1017 of UA airlines is available on your requested dates with a price of 100 and with 1 connection. Shall I proceed?

USER: Please proceed for booking.

ASSISTANT: Anna, your ticket is booked successfully. Have a great journey.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.