You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: William Jackson here.

ASSISTANT: How can I assist you now?

USER: I want to travel from SFO to HOU for a business meeting, can you please reserve a flight ticket between those locations?

ASSISTANT: Sure, may I know your dates of travel please?

USER: Thank you, my departure is on Apr 04 and please book my return ticket also on Apr 06.

ASSISTANT: Do you have any connection limit?

USER: Yes, I will prefer single connection for my journey.

ASSISTANT: May I know about your price limit?

USER: I can afford up to 200.

ASSISTANT: Ok, please wait for minute.

USER: Sure, take your time.

ASSISTANT: Sorry, there is no flight found as per your schedule.

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

ASSISTANT: Thank you for reaching us.