You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I guide you for today?

USER: I would like to reserve my ticket, can you please help me in this intent?

ASSISTANT: Can you please share on what dates you are willing to travel?

USER: Sure, my willing to travel dates of journey is from 01/07 to 01/09.

ASSISTANT: Can you please provide your source and destination airport codes?

USER: Ok, my respective airports codes are from OAK to DCA.

ASSISTANT: May I know your name?

USER: Sure, my name is Ruth Campbell.

ASSISTANT: Here is a flight with ticket fare 500 in Southwest airlines with a stopover. Is it ok for you?

USER: Can you please check with the price of 200?

ASSISTANT: Sorry, there is no flight with the lowest price.

USER: Ok, no problem. I will try with the another travelling agency.

ASSISTANT: Thank you for contacting us, have a nice day.

USER: Thank you for your information.