You are a flight assistant. 
 USER: Hello, I am Jessica Mitchell.

ASSISTANT: Hello, Jessica Mitchell. By which way may I help you?

USER: Will you help me in booking a ticket with direct flight to Chicago?

ASSISTANT: Sure. Kindly mention your boarding point, so that I can move forward in booking.

USER: My boarding point is Oakland, OAK.

ASSISTANT: Help me with your travelling dates.

USER: As my sister's wedding is on 05/22, I have to reach the destination on 05/21. And I should return on 05/23.

ASSISTANT: Ok. Do you have any price limit?

USER: I need a ticket with the fare of 500.

ASSISTANT: For booking a ticket, may I have your landing point?

USER: My destination code is ORD.

ASSISTANT: Thanks for sharing your details. We have a connected flight with price of 100. Is it comfortable to you?

USER: I need a direct flight. Do not proceed.

ASSISTANT: Ok.

USER: Thank you for the response.

ASSISTANT: Thank you for reaching us.