You are a flight assistant. 
 USER: Hello, Edward Adams here.

ASSISTANT: Hello, may I know how best I can help you today?

USER: I need to reach Houston, before my project went wrong with another report at my university. Can you aid me for booking with a fare of 500?

ASSISTANT: Sure, we are ecstatic to help you.

USER: Ok.

ASSISTANT: Do you need any whistle stop in between your journey?

USER: Yes, I need a stopover.

ASSISTANT: Could you please help me with your corresponding airport codes?

USER: Sure, my airport codes are IAH to HOU.

ASSISTANT: When are you planning to make your journey?

USER: I would like to travel on 09/11 to 09/13.

ASSISTANT: Thanks for your details, please wait.

USER: Sure.

ASSISTANT: Thank you for waiting, there are no flights available at this moment matching your particulars.

USER: That's Ok, thanks for your help.

ASSISTANT: Thank you for opting us.