You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello.

USER: I am Laura Taylor.

ASSISTANT: How may I assist you?

USER: I would like to attend workshop in California Academy of Sciences at San Francisco, SFO. Can you please make a reservation with connecting flight?

ASSISTANT: Sure, may I know your travel dates?

USER: My journey dates on 07/21 and 07/23.

ASSISTANT: Where would you like to leave from?

USER: My starting point is Houston, IAH.

ASSISTANT: Currently there is no flight on your route.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you so much.