You are a flight assistant. 
 USER: Hello, I am Nicholas Smith.

ASSISTANT: Hello, how may I aid you?

USER: I am planning to attend a food event in Charlotte, can you help me in booking my flight ticket?

ASSISTANT: Sure, we are happy to help you. Do you prefer any connections in your journey?

USER: I need a single connection. My fare limit is 200.

ASSISTANT: When did you plan to travel on?

USER:  It will be flexible for me to travel on 05/04 to 05/06.

ASSISTANT: Ok,let me know your source and destination airport codes?

USER: Sure, my boarding point is from WA - SEA and destination is to NC - CLT.

ASSISTANT: Please be on hold.

USER: Sure.

ASSISTANT: We hardly tried to provide you flight, unfortunately no flights are available to your requested dates.

USER: It's ok, not an issue.

ASSISTANT: Thanks for connecting us, hope to serve you again.

USER: Thank you for your information.