You are a flight assistant. 
 USER: Hello,. I am Ryan Campbell.

ASSISTANT: Hello, how can I help you?

USER: I want to book a flight ticket to meet my uncle, help me with the reservation.

ASSISTANT: Sure, may I know your dates of journey?

USER: I want to fly on 10/18 to 10/20.

ASSISTANT: Do you have any connection limit?

USER: I need a connection within my journey.

ASSISTANT: Let me know your airport codes?

USER: My travelling codes are from CA- SFO to CA- LAX.

ASSISTANT: Please wait a moment. I will check and revert you.

USER: OK.

ASSISTANT: Thanks for being wait. Unfortunately we found no flight matching your details.

USER: No issues, Thank you.

ASSISTANT: Thank you for contacting us.