You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you today?

USER: I want to travel from SFO to ORD for my business trip, can you please help me out with that?

ASSISTANT: Sure, can you please share your preferable journey dates?

USER: Thank you for taking my request, my departure is on May 01 and please book my return ticket on May 03.

ASSISTANT: May I know your name please?

USER: Sure, my name is Andrew Lopez.

ASSISTANT: Do you have any connection limit?

USER: Yes, I will prefer single connection.

ASSISTANT: Is there any other specifications?

USER: No.

ASSISTANT: I am sorry to say that there is no flight found under your details.

USER: Oh! Sad to hear that. Anyway, I will find another alternative. Thank you for the information.

ASSISTANT: Thank you for reaching us.

USER: You are welcome.