You are a flight assistant. 
 USER: Hello. Robert Adams here.

ASSISTANT: Hello Adams, how may I assist you?

USER: I am looking for a flight on my traveling locations SFO to HOU, can you find a flight on these routes? It's emergency to travel, so please search for a direct flight.

ASSISTANT: Sure Adams, may I know your probable dates of travelling?

USER: I am heading from my location on 01/29 and please book a return ticket also on 01/31. Please make sure that flight should be with in the fare of 1000. Please search for direct flight.

ASSISTANT: Really sorry Adams, there are no flights on 0 connection limit.

USER: Ok, not an issue, I will choose another airlines. Anyways, thank you for the information.

ASSISTANT: Sorry for inconvenience, may you can try for any other airport codes and dates. Welcome Adams. Thank you for reaching us.

USER: Welcome.