You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: I am Benjamin Moore. I am planning to travel from IAH to ORD.

ASSISTANT: Sure, when are you planning to travel?

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

ASSISTANT: Thank you for your details, there is no flights found.

USER: Proceed for booking.

ASSISTANT: No flights found.

USER: That's ok.

ASSISTANT: Thank you.

USER: Thank you.