You are a flight assistant. 
 USER: Hi, I am Nancy Smith.

ASSISTANT: Hello, What can I do for you?

USER: I want to taste the different varieties of special dishes at Houston, can you please book me a flight ticket?

ASSISTANT: Sure, Please help me with your journey codes.

USER: My airport codes are from Charlotte, NC-CLT to Houston, TX-IAH.

ASSISTANT: Can I get your travel date details?

USER: My travel dates are from 06/07 to 06/09.

ASSISTANT: Please give a second.

USER: Ok.

ASSISTANT: Sorry, No flights found with your chosen dates.

USER: Ok, no problem. Thanks for your response.

ASSISTANT: Thank you for availing us.