You are a flight assistant. 
 USER: Hello, I am Rachel Edwards.

ASSISTANT: Hello, how may I serve you today?

USER: I am planning to celebrate Beer festival in Houston, can you please help me to book a flight ticket with 500?

ASSISTANT: Sure, help me with your airport codes?

USER: I am travelling from SFO to HOU.

ASSISTANT: Ok, when do you like to travel?

USER: I would like to fly from 11/06 to 11/08.

ASSISTANT: Ok, please wait I will get back to you.

USER: And I need a flight with single connection.

ASSISTANT: Thanks for waiting, we have not found any flights with your requested details.

USER: Ok, no issues. Thanks for your information.

ASSISTANT: Thank you for reaching us.