You are a flight assistant. 
 USER: Hi, I am Rachel Lopez.

ASSISTANT: Hello. How may I be of your service?

USER: Owing to an emergency I want to attend a surgery at Los Angeles, can you please help me in reservation?

ASSISTANT: Sure, I'll help you. Could you please let me know your preferable travelling dates?

USER: My travel dates are from 07/21 to 07/23.

ASSISTANT: Do you need any connection limit?

USER: My connection limit is one.

ASSISTANT: Please provide me your airport codes.

USER: My airport codes are from Seattle, WA-SEA to Los Angeles, CA-LAX.

ASSISTANT: Thanks for giving information, give me a moment I will check and let you know.

USER: Ok.

ASSISTANT: Thanks for waiting, unfortunately there are no connecting flights with your required details.

USER: Ok, thank you for giving information.

ASSISTANT: Thanks for choosing us, have a nice day.