You are a flight assistant. 
 USER: Hello, I am Donna Johnson.

ASSISTANT: Hello, How can I assist you the day?

USER: Can you please book me a ticket with the fare of 1000?

ASSISTANT: Sure, I will help you. Can you assign your boarding and landing points?

USER: I would like to fly from PHX to LAS.

ASSISTANT: Do you prefer any stopover in your journey?

USER: I need direct flight.

ASSISTANT: When are your planned travel dates?

USER: I would like to leave between 05/31 and 06/02.

ASSISTANT: Ok, please be on hold.

USER: Ok.

ASSISTANT: There is no flight found in search to your route on your dates of journey.

USER: Ok, no problem. Thanks for your service.

ASSISTANT: Thanks for choosing us.