You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. Can I please have your name?

USER: Myself Jacob Taylor.

ASSISTANT: If there is anything you need help with, please let me know and I'll take a look at it.

USER: I want to meet my childhood friends.I would like to book a ticket.

ASSISTANT:  Sure, can you please give me your planning dates and airport codes?

USER: My trip dates are from 06/01 to 06/03. My airport codes are from MSP to IAD.

ASSISTANT: Sure, give me a minute?

USER: Ok.

ASSISTANT: I am sorry to say that there is no reservation found.

USER: Ok, that's fine. Thank you for your help.

ASSISTANT: Thank you for spending your time in talking to me.