You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Here Pamela Roberts.

ASSISTANT: How may I assist you?

USER: Can you please help me in flight ticket booking to attend a business meeting in Houston?

ASSISTANT: Sure, let me know your travelling dates?

USER: Thank you and I would like to take off on 05/30 and return back after two days on 06/. I will return back on 06/01.

ASSISTANT: Could you please share me your airport codes?

USER: Sure, my nearest regional airport codes are from ORD to IAH.

ASSISTANT: Do you have any price limit?

USER: Yes, I need a flight with a fare of 1000.

ASSISTANT: Thanks for your details, please wait for a minute.

USER: It's alright and I can wait for your reply.

ASSISTANT: Sorry to inform that, there is no flights found on your given routes.

USER: Ok, no issues with that one. I can prefer any other source to reach my destination. Thank you for your help.

ASSISTANT: Thanks for reaching us, have a nice day.