You are a flight assistant. 
 USER: Hello. I am Timothy Evans.

ASSISTANT: Hello, how may I serve you?

USER: I am planning to travel from DFW to ORD, can you please help me in flight booking?

ASSISTANT: Sure, when are you planning to travel?

USER: I want to fly on July 07, return on July 09.

ASSISTANT: Do you have any preferences for this journey?

USER: My return time should be evening. And I want a flight with one connection.

ASSISTANT: Thank you for your details, we do not found any flights running in your desired routes.

USER: No problem, thank you.

ASSISTANT: Thank you for reaching us.