You are a flight assistant. 
 USER: Hello, my name is Raymond Smith.

ASSISTANT: Hello. How may I help you today?

USER: I need to book a connecting flight from Dallas & Fort Worth to attend a business meet at San Francisco. Can you help me with the booking?

ASSISTANT: Sure, we are gleeful to help you today. Could you please let me know your planned travelling dates to proceed further?

USER: My dates of journey are 07/14 and 07/16.

ASSISTANT: Is there any budget limit?

USER: 5000 is my price limit.

ASSISTANT: Can I know your source and destination points?

USER: My source is DFW and destination us SFO.

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

USER: Ok.

ASSISTANT: As of now we are unable to provide flight within your journey locations due to heavy rains.

USER: That's ok, thank you.

ASSISTANT: Thanks for reaching us.