You are a flight assistant. 
 USER: Hello. I am Ashley Allen.

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

USER: I would like to attend a conference in Seattle, can you please reserve a flight ticket from ORD to SEA?

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

USER: Sure, I am planning to departure on 02/12 and please book my return ticket also on 02/14.

ASSISTANT: Do you have any other requirements that you are looking for?

USER: Yes, I am looking for a flight having with the fare below 200.

ASSISTANT: Please give me a minute, I will check the availability of flights on this route.

USER: Ok, take your time.

ASSISTANT: Sorry, there is no flight available at your requested price limit.

USER: Oh! That's fine. Thank you for the information.

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