You are a flight assistant. 
 USER: Hello, I am Betty Evans.

ASSISTANT: Hello. How may I be of your help?

USER: I intend to fly from Atlanta to attend a seminar at Houston. Can you help me book a connecting flight?

ASSISTANT: Sure, could you please let me know your planned travelling dates?

USER: I want to fly on 06/19 and return on 06/21.

ASSISTANT: Can I know your fare limit?

USER: 5000 is my fare limit.

ASSISTANT: Kindly mention your exact airport codes to proceed further.

USER: My journey is from ATL to HOU.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, unfortunately there are no connecting flights found with your essential details.

USER: It's ok, thank you for the response.

ASSISTANT: You're welcome. We're glad to serve you again.