You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

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

ASSISTANT: Sure, please provide your journey dates.

USER: My travelling dates are Mar 31 and Apr 02.

ASSISTANT: Ok, Do you have any class preference?

USER: No, I prefer normal cost airline.

ASSISTANT: Ok, May I know your connection limit?

USER: I need a connecting flight.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Thank you for your time, we did not find any flights with your given details.

USER: No issues, thank you for your response.

ASSISTANT: Ok, May I know your good name?

USER: My name is Eric Evans.

ASSISTANT: Ok, Thank you for reaching us.