You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, what can I do for you?

USER: Can you help me to book a connecting flight ticket with the name Robert Hernandez to Dallas to participate in hummer ride?

ASSISTANT: Sure, may I know when did you plan your dates of journey?

USER: I would prefer to start on 05/06 and I intend to return on 05/08.

ASSISTANT: Let me know the preferable codes of airport.

USER: I have planned to travel from Charlotte, NC-CLT to reach Dallas, TX-DFW.

ASSISTANT: Ok, please wait a minute.

USER: Ok.

ASSISTANT: We didn't found any flights according to your specifications.

USER: Ok, not an issue. Thanks for your help.

ASSISTANT: Thank you for approaching us.