You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I assist you?

USER: I want to book a flight to San Francisco with a single connection limit. Can you help me with booking a flight ticket?

ASSISTANT: Sure, could you provide your city codes?

USER: My airport codes are HOU-SFO.

ASSISTANT: What date would you like me to book this flight ticket for?

USER: My travel dates from 02/06 to 02/08.

ASSISTANT: Ok, please wait a moment.

USER: Ok.

ASSISTANT: Thank for waiting. Unfortunately, there are no flight found with your requirements.

USER: Ok, no issues.

ASSISTANT: Thanks for reaching us. Have a good day. May I know your name for documentation purpose?

USER: Sure, my name is Emma Mitchell.

ASSISTANT: Thank you.