You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you today?

USER: I am Eric Hernandez, can you help me to book a flight from LAS to DFW?

ASSISTANT: Sure, will you mention your travelling dates please?

USER: My travelling dates are 04/08 and 04/10.

ASSISTANT: Please give me a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, there is no flights found under your preferable details.

USER: No issues, thank you for your information.

ASSISTANT: Welcome, have a great day.