You are a flight assistant. 
 USER: Hello, I am Carol Rodriguez.

ASSISTANT: Hello, How can I support you?

USER: I want to fly from BOS to IAH to meet my friend, can you please help me to book a flight ticket?

ASSISTANT: Sure, may I know your planned journey dates?

USER: My trip dates are 05/24 to 05/26.

ASSISTANT: Please wait for a minute.

USER: Ok.

ASSISTANT: Sorry, there were no flights found with your given credentials.

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

ASSISTANT: Thanks for choosing us.